CVE-2026-59788

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59788", "assignerOrgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8", "state": "PUBLISHED", "assignerShortName": "Zabbix", "dateReserved": "2026-07-07T08:30:49.860Z", "datePublished": "2026-10-05T10:29:43.438Z", "dateUpdated": "2026-10-05T11:23:05.997Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8", "shortName": "Zabbix", "dateUpdated": "2026-10-05T10:29:43.438Z"}, "title": "Stored XSS vulnerability in OAuth configuration form", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-79", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-592", "descriptions": [{"lang": "en", "value": "CAPEC-592: Stored XSS"}]}], "affected": [{"vendor": "Zabbix", "product": "Zabbix", "repo": "https://git.zabbix.com/", "modules": ["Frontend"], "versions": [{"status": "affected", "version": "7.4.0", "lessThanOrEqual": "7.4.11", "changes": [{"at": "7.4.12", "status": "unaffected"}], "versionType": "git"}], "defaultStatus": "unknown"}], "descriptions": [{"lang": "en", "value": "The email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser. This means a crafted media type configuration, deliverable as an import file, runs arbitrary JavaScript as the Super Admin who grants consent.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>The email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser. This means a crafted media type configuration, deliverable as an import file, runs arbitrary JavaScript as the Super Admin who grants consent.</p>"}]}], "references": [{"url": "https://support.zabbix.com/browse/ZBX-28198"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "HIGH", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.6, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"}}], "configurations": [{"lang": "en", "value": "Super Admin opening an attacker-supplied media type import file.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Super Admin opening an attacker-supplied media type import file.</p>"}]}], "workarounds": [{"lang": "en", "value": "Don't import media type configurations from untrusted sources.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Don't import media type configurations from untrusted sources.</p>"}]}], "solutions": [{"lang": "en", "value": "Update the affected components to their respective fixed versions.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Update the affected components to their respective fixed versions.</p>"}]}], "source": {"discovery": "INTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-05T11:22:54.202007Z", "id": "CVE-2026-59788", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-05T11:23:05.997Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-59788", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-05T11:22:54.202007Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-05T11:22:59.219Z"}}], "cna": {"title": "Stored XSS vulnerability in OAuth configuration form", "source": {"discovery": "INTERNAL"}, "impacts": [{"capecId": "CAPEC-592", "descriptions": [{"lang": "en", "value": "CAPEC-592: Stored XSS"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "ACTIVE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "HIGH", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://git.zabbix.com/", "vendor": "Zabbix", "modules": ["Frontend"], "product": "Zabbix", "versions": [{"status": "affected", "changes": [{"at": "7.4.12", "status": "unaffected"}], "version": "7.4.0", "versionType": "git", "lessThanOrEqual": "7.4.11"}], "defaultStatus": "unknown"}], "solutions": [{"lang": "en", "value": "Update the affected components to their respective fixed versions.", "supportingMedia": [{"type": "text/html", "value": "<p>Update the affected components to their respective fixed versions.</p>", "base64": false}]}], "references": [{"url": "https://support.zabbix.com/browse/ZBX-28198"}], "workarounds": [{"lang": "en", "value": "Don't import media type configurations from untrusted sources.", "supportingMedia": [{"type": "text/html", "value": "<p>Don't import media type configurations from untrusted sources.</p>", "base64": false}]}], "x_generator": {"engine": "Vulnogram 1.0.5"}, "descriptions": [{"lang": "en", "value": "The email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser. This means a crafted media type configuration, deliverable as an import file, runs arbitrary JavaScript as the Super Admin who grants consent.", "supportingMedia": [{"type": "text/html", "value": "<p>The email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser. This means a crafted media type configuration, deliverable as an import file, runs arbitrary JavaScript as the Super Admin who grants consent.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "configurations": [{"lang": "en", "value": "Super Admin opening an attacker-supplied media type import file.", "supportingMedia": [{"type": "text/html", "value": "<p>Super Admin opening an attacker-supplied media type import file.</p>", "base64": false}]}], "providerMetadata": {"orgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8", "shortName": "Zabbix", "dateUpdated": "2026-10-05T10:29:43.438Z"}}}, "cveMetadata": {"cveId": "CVE-2026-59788", "state": "PUBLISHED", "dateUpdated": "2026-10-05T11:23:05.997Z", "dateReserved": "2026-07-07T08:30:49.860Z", "assignerOrgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8", "datePublished": "2026-10-05T10:29:43.438Z", "assignerShortName": "Zabbix"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "modules": ["Frontend"], "product": "Zabbix", "repo": "https://git.zabbix.com/", "vendor": "Zabbix", "versions": [{"changes": [{"at": "7.4.12", "status": "unaffected"}], "lessThanOrEqual": "7.4.11", "status": "affected", "version": "7.4.0", "versionType": "git"}]}], "source": "security@zabbix.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The email media type OAuth form passes the Authorization endpoint value to window.open() without validating the URL scheme, so a javascript: URL is executed in the browser. This means a crafted media type configuration, deliverable as an import file, runs arbitrary JavaScript as the Super Admin who grants consent."}], "id": "CVE-2026-59788", "lastModified": "2026-10-06T15:27:05.657", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.7, "baseSeverity": "MEDIUM", "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": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:L/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": "HIGH", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@zabbix.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59788", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-05T11:22:54.202007Z", "version": "2.0.3"}}]}, "published": "2026-10-05T11:17:00.113", "references": [{"source": "security@zabbix.com", "url": "https://support.zabbix.com/browse/ZBX-28198"}], "sourceIdentifier": "security@zabbix.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@zabbix.com", "type": "Secondary"}]}

{"bugzilla": {"description": "zabbix: Zabbix: Arbitrary script execution via unvalidated OAuth authorization endpoint URL", "id": "2545872", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545872"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-79", "details": ["A flaw was found in Zabbix. The application fails to properly validate the URL scheme of the authorization endpoint in the email media type OAuth form. An attacker can provide a specially crafted configuration file containing a malicious script link. When a privileged administrator attempts to grant consent, arbitrary JavaScript executes in their browser, potentially allowing unauthorized actions or disclosure of sensitive administrative information."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-59788", "public_date": "2026-10-05T10:29:43Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-59788\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-59788\nhttps://support.zabbix.com/browse/ZBX-28198"], "statement": "Red Hat does not ship Zabbix in any supported product. No community packages ship vulnerable versions of this component.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[7.4.0,7.4.11]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.4.12,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Zabbix", "source": "cna", "vendor": "Zabbix"}, "product": "zabbix", "vendor": "zabbix"}], "created": "2026-10-05T11:30:17.482779+00:00", "updated": "2026-10-05T11:30:17.974569+00:00", "vendors": ["zabbix", "zabbix$PRODUCT$zabbix"]}