CVE-2026-42524: jenkins project jenkins html publisher plugin Cross-site Scripting
CVSS: 8.0v3.1HighAnalyzed
AliasesGHSA-f8h4-46xv-h7jj
Published 29-04-2026Last modified 29-04-2026
Vulnerability summary
CVE-2026-42524 is a high (CVSS 8.0) Cross-site Scripting vulnerability in jenkins project jenkins html publisher plugin. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.1% of scored vulnerabilities.
CVSS score
8.0/10
010
High · v3.1 (CVE.org)EPSS score
0.50%
0%100%
Low · +0.21 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 29-04-2026PublishedVulnerability first disclosed.
- 29-04-2026Last modifiedVulnerability information updated.
Description
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 metrics
3 scores · 3 sources · 1 versionHigh 8.0Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · MavenEcosystem advisory · calculated8.0HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- NVDNIST8.0HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
41%
Versus all other CVEs
30-day change
+0.21 pp
From 0.28% on 19-09-2026
19-09-202619-10-2026
EPSS score0.50%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Jenkins1 product
- html_publisher≤ 427
Jenkins project1 product
Org.jenkins-ci.plugins1 product
- htmlpublisher< 427.1
3 vendors · 3 products
