CVE-2026-94404

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-94404", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-09-21T13:50:44.676Z", "datePublished": "2026-09-21T13:50:46.410Z", "dateUpdated": "2026-09-21T14:48:16.245Z"}, "containers": {"cna": {"affected": [{"modules": ["AttributesController"], "product": "MISP", "programFiles": ["app/Controller/AttributesController.php"], "repo": "https://github.com/MISP/MISP", "vendor": "MISP", "versions": [{"lessThan": "2.5.47", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "Jeroen Pinoy"}, {"lang": "en", "type": "remediation developer", "value": "iglocska"}, {"lang": "en", "type": "remediation developer", "value": "Claude Opus 5 (1M context)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>MISP has a security issue that could let an attacker change threat-intelligence data through a logged-in user\u2019s browser without that user knowingly approving the change.</p><p>The affected function did not properly enforce MISP\u2019s usual protection against forged requests. Because of this, an attacker could create a malicious webpage that silently sends a request to MISP when visited by an authenticated user.</p><p>If successful, the attacker could change details of an attribute, such as its value, type, category, comment, distribution settings, or related timestamps.</p><p>The attack requires the victim to already be logged in to MISP and to visit an attacker-controlled page.</p><p>The main impact is unauthorized modification of threat-intelligence data, which could lead to incorrect indicators, wrong classifications, or altered sharing settings and reduce confidence in the accuracy of the information stored in MISP.</p>Version affected: &lt;2.5.47"}], "value": "MISP has a security issue that could let an attacker change threat-intelligence data through a logged-in user\u2019s browser without that user knowingly approving the change.\n\nThe affected function did not properly enforce MISP\u2019s usual protection against forged requests. Because of this, an attacker could create a malicious webpage that silently sends a request to MISP when visited by an authenticated user.\n\nIf successful, the attacker could change details of an attribute, such as its value, type, category, comment, distribution settings, or related timestamps.\n\nThe attack requires the victim to already be logged in to MISP and to visit an attacker-controlled page.\n\nThe main impact is unauthorized modification of threat-intelligence data, which could lead to incorrect indicators, wrong classifications, or altered sharing settings and reduce confidence in the accuracy of the information stored in MISP.\n\nVersion affected: <2.5.47"}], "impacts": [{"capecId": "CAPEC-124", "descriptions": [{"lang": "en", "value": "CAPEC-124 Cross-Site Request Forgery"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 7.1, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-352", "description": "CWE-352 Cross-Site Request Forgery (CSRF)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-21T13:50:46.410Z"}, "references": [{"name": "Security patch", "tags": ["patch"], "url": "https://github.com/MISP/MISP/commit/dfbae33f9"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The editField action is removed from the Security component's unlockedActions list and added to the _csrfTokenHeaderOnly array. This enforces CSRF token validation (accepted either in the X-CSRF-Token header or in the request body) while dropping only the field-hash check, which the existing AJAX callers (Overmind index and legacy inline forms) cannot satisfy. Legitimate callers are unaffected because they already transmit a valid CSRF token.</p>"}], "value": "The editField action is removed from the Security component's unlockedActions list and added to the _csrfTokenHeaderOnly array. This enforces CSRF token validation (accepted either in the X-CSRF-Token header or in the request body) while dropping only the field-hash check, which the existing AJAX callers (Overmind index and legacy inline forms) cannot satisfy. Legitimate callers are unaffected because they already transmit a valid CSRF token."}], "title": "MISP CSRF vulnerability allows unauthorized attribute modification", "x_gcve": [{"extensions": {"bcp-05-x-01": {"ai_annotations": [{"ai_level": "generated", "description": "Draft vulnerability metadata was generated from a git-format patch using an Ollama-hosted language model. 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If MISP deployments require additional authentication factors (e.g., MFA) that would block a cross-site form post, the effective exploitability may be lower.", "The CAPEC-124 mapping is the closest standard pattern for CSRF; no more specific CAPEC exists for the CakePHP unlockedActions bypass mechanism.", "The Co-Authored-By AI tool is included as a 'tool' credit based on explicit commit metadata; it is not a human contributor."], "capecRationale": [{"capecId": "CAPEC-124", "rationale": "The patch description explicitly states that a cross-site form post carrying the victim's session cookie could rewrite attribute fields. This is the canonical CSRF attack pattern: an attacker induces a victim's browser to send an authenticated request to a target application without the victim's knowledge or consent. CAPEC-124 is the most direct and specific match."}], "commit": "dfbae33f9a93bf127fae115bc6cd1a9e03d028e9", "confidence": "high", "credits": [{"lang": "en", "type": "reporter", "value": "Jeroen Pinoy"}, {"lang": "en", "type": "remediation developer", "value": "iglocska"}, {"lang": "en", "type": "remediation developer", "value": "Claude Opus 5 (1M context)"}], "cvssRationale": "AV:N: The attack is delivered over the network via a malicious web page. AC:L: Crafting a CSRF form is straightforward and requires no race conditions or special timing. AT:N: The target MISP instance is not under the attacker's control. PR:N: The attacker needs no account on MISP; the victim's existing session is sufficient. UI:P: The victim must passively load the attacker's page (e.g., visit a link), which triggers the auto-submitting form; no explicit click or form submission by the victim is required. VC:N: The attack modifies data but does not disclose confidential information. VI:H: The attacker can alter attribute values, types, categories, distribution, and timestamps, corrupting threat-intelligence data for all users. VA:N: No denial-of-service impact is indicated. SC/SI/SA:N: No secondary impacts on other systems are evidenced.", "fixSummary": "The editField action is removed from the Security component's unlockedActions list and added to the _csrfTokenHeaderOnly array. This enforces CSRF token validation (accepted either in the X-CSRF-Token header or in the request body) while dropping only the field-hash check, which the existing AJAX callers (Overmind index and legacy inline forms) cannot satisfy. 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Simultaneously, the line adding 'editField' to $this->Security->unlockedActions[] is removed, so the action is no longer exempt from CSRF checks. 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{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-94404", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-21T14:34:58.261364Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-21T14:39:16.731Z"}}], "cna": {"title": "MISP CSRF vulnerability allows unauthorized attribute modification", "x_gcve": [{"vulnId": "GCVE-1-2026-20043", "extensions": {"bcp-05-x-01": {"ai_annotations": [{"tags": ["ai-computer-assisted:llm-generated", "ai-computer-assisted:classification"], "scope": "record", "models": [{"name": "qwen3.8:27b", "source": "ollama", "gna_source": 1, "identifier": "qwen3.8:27b"}], "ai_level": "generated", "gna_source": 1, "description": "Draft vulnerability metadata was generated from a git-format patch using an Ollama-hosted language model. 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If MISP deployments require additional authentication factors (e.g., MFA) that would block a cross-site form post, the effective exploitability may be lower.", "The CAPEC-124 mapping is the closest standard pattern for CSRF; no more specific CAPEC exists for the CakePHP unlockedActions bypass mechanism.", "The Co-Authored-By AI tool is included as a 'tool' credit based on explicit commit metadata; it is not a human contributor."], "generatedAt": "2026-09-21T13:38:54.473662Z", "patchSha256": "beb65b8daaa1d2e649f1178cc7f2c774f4ba7e75a13cc000524eef566c4545c8", "patchSummary": "In app/Controller/AttributesController.php, the string 'editField' is added to the _csrfTokenHeaderOnly() call in beforeFilter(), enabling header-or-body CSRF token validation for that action. Simultaneously, the line adding 'editField' to $this->Security->unlockedActions[] is removed, so the action is no longer exempt from CSRF checks. A comment block is added explaining that both the Overmind index (token in X-CSRF-Token header) and legacy inline forms (token in body) already carry a valid token, so only the unsatisfiable field-hash check is dropped.", "cvssRationale": "AV:N: The attack is delivered over the network via a malicious web page. AC:L: Crafting a CSRF form is straightforward and requires no race conditions or special timing. AT:N: The target MISP instance is not under the attacker's control. PR:N: The attacker needs no account on MISP; the victim's existing session is sufficient. UI:P: The victim must passively load the attacker's page (e.g., visit a link), which triggers the auto-submitting form; no explicit click or form submission by the victim is required. VC:N: The attack modifies data but does not disclose confidential information. VI:H: The attacker can alter attribute values, types, categories, distribution, and timestamps, corrupting threat-intelligence data for all users. 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Legitimate callers are unaffected because they already transmit a valid CSRF token.</p>", "base64": false}]}], "references": [{"url": "https://github.com/MISP/MISP/commit/dfbae33f9", "name": "Security patch", "tags": ["patch"]}], "descriptions": [{"lang": "en", "value": "MISP has a security issue that could let an attacker change threat-intelligence data through a logged-in user\u2019s browser without that user knowingly approving the change.\n\nThe affected function did not properly enforce MISP\u2019s usual protection against forged requests. Because of this, an attacker could create a malicious webpage that silently sends a request to MISP when visited by an authenticated user.\n\nIf successful, the attacker could change details of an attribute, such as its value, type, category, comment, distribution settings, or related timestamps.\n\nThe attack requires the victim to already be logged in to MISP and to visit an attacker-controlled page.\n\nThe main impact is unauthorized modification of threat-intelligence data, which could lead to incorrect indicators, wrong classifications, or altered sharing settings and reduce confidence in the accuracy of the information stored in MISP.\n\nVersion affected: <2.5.47", "supportingMedia": [{"type": "text/html", "value": "<p>MISP has a security issue that could let an attacker change threat-intelligence data through a logged-in user\u2019s browser without that user knowingly approving the change.</p><p>The affected function did not properly enforce MISP\u2019s usual protection against forged requests. Because of this, an attacker could create a malicious webpage that silently sends a request to MISP when visited by an authenticated user.</p><p>If successful, the attacker could change details of an attribute, such as its value, type, category, comment, distribution settings, or related timestamps.</p><p>The attack requires the victim to already be logged in to MISP and to visit an attacker-controlled page.</p><p>The main impact is unauthorized modification of threat-intelligence data, which could lead to incorrect indicators, wrong classifications, or altered sharing settings and reduce confidence in the accuracy of the information stored in MISP.</p>Version affected: &lt;2.5.47", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-352", "description": "CWE-352 Cross-Site Request Forgery (CSRF)"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-21T13:50:46.410Z"}}}, "cveMetadata": {"cveId": "CVE-2026-94404", "state": "PUBLISHED", "dateUpdated": "2026-09-21T14:48:16.245Z", "dateReserved": "2026-09-21T13:50:44.676Z", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "datePublished": "2026-09-21T13:50:46.410Z", "assignerShortName": "CIRCL"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"modules": ["AttributesController"], "product": "MISP", "programFiles": ["app/Controller/AttributesController.php"], "repo": "https://github.com/MISP/MISP", "vendor": "MISP", "versions": [{"lessThan": "2.5.47", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "MISP has a security issue that could let an attacker change threat-intelligence data through a logged-in user\u2019s browser without that user knowingly approving the change.\n\nThe affected function did not properly enforce MISP\u2019s usual protection against forged requests. Because of this, an attacker could create a malicious webpage that silently sends a request to MISP when visited by an authenticated user.\n\nIf successful, the attacker could change details of an attribute, such as its value, type, category, comment, distribution settings, or related timestamps.\n\nThe attack requires the victim to already be logged in to MISP and to visit an attacker-controlled page.\n\nThe main impact is unauthorized modification of threat-intelligence data, which could lead to incorrect indicators, wrong classifications, or altered sharing settings and reduce confidence in the accuracy of the information stored in MISP.\n\nVersion affected: <2.5.47"}], "id": "CVE-2026-94404", "lastModified": "2026-09-21T15:17:40.073", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-94404", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-21T14:34:58.261364Z", "version": "2.0.3"}}]}, "published": "2026-09-21T14:17:31.203", "references": [{"source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "url": "https://github.com/MISP/MISP/commit/dfbae33f9"}], "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-352"}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.5.47)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "MISP", "source": "cna", "vendor": "MISP"}, "product": "misp", "vendor": "misp"}], "created": "2026-09-21T15:45:15.989523+00:00", "updated": "2026-09-21T17:00:09.678789+00:00", "vendors": ["misp", "misp$PRODUCT$misp"]}