CVE-2023-32986 — Jenkins File Parameter Plugin 285

Jenkins File Parameter Plugin 285.v757c5b_67a_c25 and earlier does not restrict the name (and resulting uploaded file name) of Stashed File Parameters, allowing attackers with Item/Configure permission to create or replace arbitrary files on the Jenkins controller file system wit

01What is this vulnerability?

Jenkins File Parameter Plugin 285.v757c5b_67a_c25 and earlier does not restrict the name (and resulting uploaded file name) of Stashed File Parameters, allowing attackers with Item/Configure permission to create or replace arbitrary files on the Jenkins controller file system with attacker-specified content.

02Affected products

Vendor	Product	Versions
Jenkins Project	Jenkins File Parameter Plugin	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-05-16T16:00:07.514Z
• Last modified: 2025-01-23T20:29:53.246Z

09References

• www.jenkins.io — https://www.jenkins.io/security/advisory/2023-05-16/#SECURITY-3123