ACTIVELY EXPLOITED

CVE-2025-35939: Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability

Facts
VendorCraft CMS
ProductCraft CMS
Actively exploitedYes
Added to CISA KEV2 Jun 2025
CISA federal deadline23 Jun 2025
Weakness (CWE)CWE-472

Required action (CISA's text)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Description (NVD)

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.

SOURCES

Other Craft CMS flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.