June 2, 2025 · Applied Cybernetics Group
CVE-2025-35939 — Craft CMS Craft CMS
Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability
- Added to KEV
2025-06-02- Federal due date
2025-06-23- Vendor
- Craft CMS
- Product
- Craft CMS
- EPSS
- 63.9th percentile (score 0.012, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- ATT&CK
- T1059 , T1190 , T1505.003 · signal rollup
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2025-35939
CISA short 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
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.