Stored XSS via build-step CSP disablement
Published Oct 19, 2022 · Updated May 8, 2025
Stored XSS in Jenkins 360 FireLine Plugin 1.7.2 and earlier allows attackers to execute scripts through user-controlled served files. The checked Open access to HTML with JS or CSS option in the Execute FireLine build step globally clears Content-Security-Policy for DirectoryBrowserSupport content. Reachability requires that step to run and no Resource Root URL to be configured; users who control workspace or artifact files can then target browsers that open them.
Summary
What happened
Stored XSS in Jenkins 360 FireLine Plugin 1.7.2 and earlier allows attackers to execute scripts through user-controlled served files. The checked Open access to HTML with JS or CSS option in the Execute FireLine build step globally clears Content-Security-Policy for DirectoryBrowserSupport content. Reachability requires that step to run and no Resource Root URL to be configured; users who control workspace or artifact files can then target browsers that open them.
The record
- CVE
- CVE-2022-43435
- Published
- Oct 19, 2022
- Updated
- May 8, 2025
- Vendor
- Jenkins Project
- Product
- 360 FireLine Plugin
- Classifications
- CWE-693, T1189
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Oct 19, 2022CVE publishedPublication date reported by the CVE source.
- May 8, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <=1.7.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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