High severity · published Apr 29, 2026
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…
8.0
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JH
Jenkins HTML Publisher Plugin · Jenkins Project
through 427 · source: vendor
HP
Html Publisher · Jenkins
through 427 · source: NVD
Affected product
JH
Jenkins HTML Publisher Plugin
Jenkins Project
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42524
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-42524
Vendor Advisory
https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3706
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