CVE-2022-34183
Published: 23 June 2022
Summary
CVE-2022-34183 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Jenkins Agent Server Parameter. Its CVSS base score is 5.4 (Medium).
Operationally, ranked in the top 5.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Jenkins Agent Server Parameter Plugin 1.1 and earlier contains a stored cross-site scripting vulnerability because it fails to escape the name and description fields of Agent Server parameters when rendering views that display those parameters. The affected component is the Jenkins plugin responsible for handling these parameter types within job configurations.
Attackers who possess Item/Configure permission can supply crafted values containing script payloads in the parameter name or description. When another user subsequently views the parameter list, the malicious script executes in that user's browser context, enabling actions such as session hijacking or unauthorized configuration changes within the Jenkins instance.
The referenced Jenkins security advisory for SECURITY-2784 details the issue and directs administrators to apply the corresponding plugin update that introduces proper escaping for the affected fields.
The EPSS score for this CVE rose materially from lower values after disclosure to a peak of 0.2585 on 2025-12-11 before receding to the current level of 0.1390, indicating a period of increased exploitation interest that warrants renewed attention.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-5952
Vulnerability details
Jenkins Agent Server Parameter Plugin 1.1 and earlier does not escape the name and description of Agent Server parameters on views displaying parameters, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/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.