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CVE-2025-35939VulnerabilityAdded to KEV 06/02/2025

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

Affects Craft CMS Craft CMSSource CISA KEV

0

Mentioned vulnerabilities

Exploited in the wild · KEV due 23 Jun 2025 · 1% EPSS : apply the vendor's fix or mitigations to Craft CMS now.

Data as of 10/24/2026, 22:16:01 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
Exploitation

Actively exploited – in CISA KEV since 06/02/2025

KEV deadline
06/23/2025 US federal agencies must patch by this date; a sensible deadline for everyone else.
EPSS
1.3% chance of exploitation in 30 days – higher than 71% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

What to do

CISA 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.

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.

Weaknesses

References

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