CVE-2023-33007
Published: 16 May 2023
Summary
CVE-2023-33007 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Jenkins Loadcomplete Support. Its CVSS base score is 5.4 (Medium).
Operationally, ranked in the top 4.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The vulnerability is a stored cross-site scripting flaw (CWE-79) affecting the Jenkins LoadComplete support Plugin version 1.0 and earlier. It stems from a failure to escape the LoadComplete test name when rendering configuration or results pages, as documented under SECURITY-2903 with a CVSS 3.1 score of 5.4.
Attackers who possess Item/Configure permission on a Jenkins instance can supply a malicious test name that is persisted and later executed in the browsers of other users who view the affected pages, enabling limited theft or manipulation of data within the Jenkins context.
The official Jenkins security advisory published on 2023-05-16 at https://www.jenkins.io/security/advisory/2023-05-16/#SECURITY-2903 details the issue and is the authoritative source for any subsequent plugin updates or configuration guidance.
The associated EPSS score has remained flat at 0.1744 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-1495
Vulnerability details
Jenkins LoadComplete support Plugin 1.0 and earlier does not escape the LoadComplete test name, 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.