Craft CMS Craft CMS
YES - ON THE CISA KEV LIST
CVE-2025-35939
Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability
overdue since 2025-06-23
Craft CMS: 4 entries (0.2% of all KEV entries are from this vendor); 1 added in 2026.
BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.
Your BOD 26-04 window (SSVC tier helper)
Your remediation window ends:
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
Other KEV entries for this vendor: Craft CMS
- CVE-2025-32432 - Craft CMS (2026-03-20)
- CVE-2024-56145 - Craft CMS (2025-06-02)
- CVE-2025-23209 - Craft CMS (2025-02-20)
Go deeper
KEV deadlines are a governance problem as much as a patching one. TrebSec's AI governance packs help small teams document, assign, and evidence exactly this work.
AI Governance Policy Pack - $79 AI Vendor Workbook - $49 Both packs bundled - $99