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CVE-2026-42524 is a stored cross-site scripting vulnerability in Jenkins HTML Publisher Plugin affecting version 427 and earlier. The flaw is caused by improper escaping of the job name and URL in the plugin's legacy wrapper file. Because attacker-controlled values are written into content later rendered in Jenkins, a user with Item/Configure permission can store malicious script that executes when another user, including an administrator, views the published report or related page using the legacy wrapper.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity stored XSS vulnerability in the Jenkins HTML Publisher Plugin caused by improper escaping of job names and URLs in a legacy wrapper file.
A stored cross-site scripting vulnerability in Jenkins HTML Publisher Plugin 427 and earlier caused by improper escaping of job name and URL in the legacy wrapper file.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.