Craft CMS External Control of Assumed-Immutable Web Parameter
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2025-06-23 · passed 1 year 2 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
Craft CMS Craft CMS. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-472.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 1 year 2 months ago
Sources
- NVD entry for CVE-2025-35939 nvd.nist.gov/vuln/detail/CVE-2025-35939
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- github.com github.com/craftcms/cms/pull/17220
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2025-35939