CVE-2025-35939 — Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability
CVE-2025-35939: Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Craft CMS |
| Product | Craft CMS |
| Date added | 2025-06-02 |
| Due date | 2025-06-23 |
| Ransomware campaign use | Unknown |
Description
Craft CMS contains an external control of assumed-immutable web parameter vulnerability. This vulnerability could allow an unauthenticated client to introduce arbitrary values, such as PHP code, to a known local file location on the server. This vulnerability could be chained with CVE-2024-58136 as represented by CVE-2025-32432.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://github.com/craftcms/cms/pull/17220 ; https://nvd.nist.gov/vuln/detail/CVE-2025-35939
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-35939
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog