CVE-2026-84677

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84677", "assignerOrgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b", "state": "PUBLISHED", "assignerShortName": "jenkins", "dateReserved": "2026-09-01T21:55:27.036Z", "datePublished": "2026-09-02T15:40:59.042Z", "dateUpdated": "2026-09-02T16:52:14.388Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b", "shortName": "jenkins", "dateUpdated": "2026-09-02T15:40:59.042Z"}, "affected": [{"vendor": "Jenkins Project", "product": "Jenkins update-center2", "versions": [{"version": "0", "versionType": "maven", "lessThanOrEqual": "3.18.3", "status": "affected"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin names, descriptions, and version metadata) on plugin download index pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide a plugin for hosting."}], "references": [{"name": "Jenkins Security Advisory 2026-09-02", "url": "https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4038", "tags": ["vendor-advisory"]}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-79", "lang": "en", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-09-02T16:52:11.172191Z", "id": "CVE-2026-84677", "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": "2026-09-02T16:52:14.388Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84677", "assignerOrgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b", "state": "PUBLISHED", "assignerShortName": "jenkins", "dateReserved": "2026-09-01T21:55:27.036Z", "datePublished": "2026-09-02T15:40:59.042Z", "dateUpdated": "2026-09-02T16:52:14.388Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b", "shortName": "jenkins", "dateUpdated": "2026-09-02T15:40:59.042Z"}, "affected": [{"vendor": "Jenkins Project", "product": "Jenkins update-center2", "versions": [{"version": "0", "versionType": "maven", "lessThanOrEqual": "3.18.3", "status": "affected"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin names, descriptions, and version metadata) on plugin download index pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide a plugin for hosting."}], "references": [{"name": "Jenkins Security Advisory 2026-09-02", "url": "https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4038", "tags": ["vendor-advisory"]}]}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-84677", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-02T16:52:11.172191Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-02T16:52:08.686Z"}}]}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Jenkins update-center2", "vendor": "Jenkins Project", "versions": [{"lessThanOrEqual": "3.18.3", "status": "affected", "version": "0", "versionType": "maven"}]}], "source": "jenkinsci-cert@googlegroups.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin names, descriptions, and version metadata) on plugin download index pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide a plugin for hosting."}], "id": "CVE-2026-84677", "lastModified": "2026-09-03T17:13:16.490", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-84677", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-02T16:52:11.172191Z", "version": "2.0.3"}}]}, "published": "2026-09-02T16:17:32.330", "references": [{"source": "jenkinsci-cert@googlegroups.com", "url": "https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4038"}], "sourceIdentifier": "jenkinsci-cert@googlegroups.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,3.18.3]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Jenkins update-center2", "source": "cna", "vendor": "Jenkins Project"}, "product": "jenkins_update-center2", "vendor": "jenkins_project"}], "created": "2026-09-03T11:00:03.821234+00:00", "updated": "2026-09-03T15:34:31.794107+00:00", "vendors": ["jenkins_project", "jenkins_project$PRODUCT$jenkins_update-center2"]}