CVE-2026-42524

Jenkins HTML Publisher Plugin 427 and earlier does not escape job name and URL in the legacy wrapper file, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

CVSS v3 8.0 HIGH

8.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.1 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3706	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:jenkins:html_publisher:*:*:*:*:*:jenkins:*:*

History

26 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Jenkins HTML Publisher plugin 427 y versiones anteriores no escapa el nombre del trabajo y la URL en el archivo de envoltura heredado, lo que resulta en una vulnerabilidad de cross-site scripting (XSS) almacenado explotable por atacantes con permiso de Item/Configure.

Information

Published : 2026-04-29 14:16

Updated : 2026-10-26 20:10

NVD link : CVE-2026-42524

Mitre link : CVE-2026-42524

CVE.ORG link : CVE-2026-42524

JSON object : View

Products Affected

jenkins

html_publisher

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"id": "CVE-2026-42524", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42524", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-04-29T14:29:38.535986Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.0, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.1}]}, "affected": [{"source": "jenkinsci-cert@googlegroups.com", "affectedData": [{"vendor": "Jenkins Project", "product": "Jenkins HTML Publisher Plugin", "versions": [{"status": "affected", "version": "0", "versionType": "maven", "lessThanOrEqual": "427"}], "defaultStatus": "unaffected"}]}], "published": "2026-04-29T14:16:19.457", "references": [{"url": "https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3706", "tags": ["Vendor Advisory"], "source": "jenkinsci-cert@googlegroups.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Jenkins HTML Publisher Plugin 427 and earlier does not escape job name and URL in the legacy wrapper file, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission."}, {"lang": "es", "value": "Jenkins HTML Publisher plugin 427 y versiones anteriores no escapa el nombre del trabajo y la URL en el archivo de envoltura heredado, lo que resulta en una vulnerabilidad de cross-site scripting (XSS) almacenado explotable por atacantes con permiso de Item/Configure."}], "lastModified": "2026-10-26T20:10:00.160", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:jenkins:html_publisher:*:*:*:*:*:jenkins:*:*", "vulnerable": true, "matchCriteriaId": "B2B63A26-10CB-44CB-88AA-28524ACB78D6", "versionEndIncluding": "427"}], "operator": "OR"}]}], "sourceIdentifier": "jenkinsci-cert@googlegroups.com"}