CVE-2025-35939
Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability
CVSS
—
No CVSS
EPSS
1.2%
p64
KEV
YES
Jun 2, 2025
Exploit Today
69
0-100
Published: — · Last modified: —
Product
Craft CMS / Craft CMS
Vulnerability
Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability
Added to KEV
Jun 2, 2025
Remediate by
Jun 23, 2025
Known ransomware use
No
Summary 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.
Notes
https://github.com/craftcms/cms/pull/17220 ; https://nvd.nist.gov/vuln/detail/CVE-2025-35939