CVE-2022-34170
Published: 23 June 2022
Summary
CVE-2022-34170 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Jenkins Jenkins. Its CVSS base score is 5.4 (Medium).
Operationally, ranked in the top 23.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-34170 is a cross-site scripting vulnerability affecting the Jenkins automation server in versions 2.320 through 2.355 inclusive and LTS releases 2.332.1 through 2.332.3 inclusive. The root cause is incomplete output encoding on the help icon tooltip, which fails to escape the feature name and thereby reintroduces the flaw originally addressed by the SECURITY-1955 fix, allowing script execution via CWE-79.
Attackers who possess Job/Configure permission can supply a malicious feature name that is rendered unescaped in another user's browser when the help icon is displayed, resulting in arbitrary script execution with a CVSS score of 5.4 under an AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N vector.
The Jenkins security advisory published on 2022-06-22 at the referenced URL describes the issue and directs administrators to upgrade to a patched release that restores proper escaping of the tooltip content.
EPSS for the CVE rose from a low baseline to a peak of 0.0505 on 2025-12-11 before receding to the current value of 0.0092, indicating a period of increased exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-5949
Vulnerability details
In Jenkins 2.320 through 2.355 (both inclusive) and LTS 2.332.1 through LTS 2.332.3 (both inclusive) the help icon does not escape the feature name that is part of its tooltip, effectively undoing the fix for SECURITY-1955, resulting in a cross-site…
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scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.