CVE-2026-23898

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23898", "assignerOrgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586", "state": "PUBLISHED", "assignerShortName": "Joomla", "dateReserved": "2026-01-17T04:38:44.008Z", "datePublished": "2026-04-01T09:03:40.185Z", "dateUpdated": "2026-08-12T13:56:53.399Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Joomla! CMS", "vendor": "Joomla! Project", "versions": [{"status": "affected", "version": "4.0.0-5.4.3"}, {"status": "affected", "version": "6.0.0-6.0.3"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Phil Taylor, mysites.guru"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism."}], "value": "Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism."}], "impacts": [{"capecId": "CAPEC-126", "descriptions": [{"lang": "en", "value": "CAPEC-126 Path Traversal"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.6, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-73", "description": "CWE-73 Destructive File Deletion and Potential System Compromise", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586", "shortName": "Joomla", "dateUpdated": "2026-08-12T13:56:53.399Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://developer.joomla.org/security-centre/1031-20260305-core-arbitrary-file-deletion-in-com-joomlaupdate.html"}], "source": {"discovery": "UNKNOWN"}, "title": "Joomla! Core - [20260305] - Arbitrary file deletion in com_joomlaupdate", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-01T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-23898"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-02T03:56:03.080Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-23898", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-04-01T12:41:21.055135Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-01T12:41:42.322Z"}}], "cna": {"title": "Joomla! Core - [20260305] - Arbitrary file deletion in com_joomlaupdate", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "Phil Taylor, mysites.guru"}], "impacts": [{"capecId": "CAPEC-126", "descriptions": [{"lang": "en", "value": "CAPEC-126 Path Traversal"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Joomla! Project", "product": "Joomla! CMS", "versions": [{"status": "affected", "version": "4.0.0-5.4.3"}, {"status": "affected", "version": "6.0.0-6.0.3"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://developer.joomla.org/security-centre/1031-20260305-core-arbitrary-file-deletion-in-com-joomlaupdate.html", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "Vulnogram 0.1.0-dev"}, "descriptions": [{"lang": "en", "value": "Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.", "supportingMedia": [{"type": "text/html", "value": "Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-73", "description": "CWE-73 Destructive File Deletion and Potential System Compromise"}]}], "providerMetadata": {"orgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586", "shortName": "Joomla", "dateUpdated": "2026-08-12T13:56:53.399Z"}}}, "cveMetadata": {"cveId": "CVE-2026-23898", "state": "PUBLISHED", "dateUpdated": "2026-08-12T13:56:53.399Z", "dateReserved": "2026-01-17T04:38:44.008Z", "assignerOrgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586", "datePublished": "2026-04-01T09:03:40.185Z", "assignerShortName": "Joomla"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Joomla! CMS", "vendor": "Joomla! Project", "versions": [{"status": "affected", "version": "4.0.0-5.4.3"}, {"status": "affected", "version": "6.0.0-6.0.3"}]}], "source": "security@joomla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*", "matchCriteriaId": "E21AF5F0-76B9-4F00-9055-A9F2A170253C", "versionEndExcluding": "5.4.4", "versionStartIncluding": "3.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*", "matchCriteriaId": "B61EE37B-A751-48E2-BDBE-6A6EC5499798", "versionEndExcluding": "6.0.4", "versionStartIncluding": "6.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism."}, {"lang": "es", "value": "La falta de validaci\u00f3n de entrada conduce a una vulnerabilidad de eliminaci\u00f3n arbitraria de archivos en el mecanismo del servidor de autoactualizaci\u00f3n."}], "id": "CVE-2026-23898", "lastModified": "2026-10-26T21:10:00.170", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.6, "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": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/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": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@joomla.org", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-23898", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-04-01T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-04-01T10:16:16.397", "references": [{"source": "security@joomla.org", "tags": ["Vendor Advisory"], "url": "https://developer.joomla.org/security-centre/1031-20260305-core-arbitrary-file-deletion-in-com-joomlaupdate.html"}], "sourceIdentifier": "security@joomla.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-73"}], "source": "security@joomla.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,5.4.3]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.0.0,6.0.3]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Joomla! CMS", "source": "cna", "vendor": "Joomla! Project"}, "product": "joomla!", "vendor": "joomla"}], "analysis": {"en": {"generated_at": "2026-04-09T21:26:59.914397+00:00", "value": {"mitigation_remediation": ["Apply the latest Joomla! CMS security patch released by the Joomla! Project", "If the autoupdate feature is not required, disable or remove the com_joomlaupdate component", "Limit file permissions for Joomla! installation directories to reduce the scope of deletion"], "summary": {"action": "Immediate Patch", "impact": "Remote file deletion leading to loss of integrity and availability"}, "threat_synthesis": {"affected_systems": "The vulnerability affects any installation of Joomla! CMS that uses the com_joomlaupdate component. No specific version numbers are listed in the advisory, but the issue applies to Joomla! CMS deployments that have the autoupdate feature enabled.", "description_and_impact": "A lack of input validation in Joomla! CMS\u2019s autoupdate server mechanism allows an attacker to delete arbitrary files on the server. The vulnerability can remove critical files, resulting in a loss of site integrity and potentially making the site unavailable. It is a file\u2011path traversal flaw classified as CWE\u201173. The impact could include site downtime, loss of data, and facilitation of further compromise if essential configuration files are removed.", "risk_and_exploitability": "The CVSS base score of 8.6 indicates high severity. EPSS shows a low probability of exploitation (<1%), and the vulnerability is not listed in CISA\u2019s KEV catalog. The likely attack vector is a remote web-based request to the autoupdate component, which an attacker can craft to specify arbitrary file paths. Although the probability of exploitation is currently low, the high impact necessitates timely action."}}}}, "created": "2026-04-02T07:49:26.712954+00:00", "updated": "2026-04-10T09:45:47.540448+00:00", "vendors": ["joomla", "joomla$PRODUCT$joomla!"]}