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CVE-2025-35939

Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability

Craft CMS Craft CMSApplications & CMS
Open in ThreatlineRecord JSON
CVSS
5.3Medium
ExploitationExploited in the wildAdded to KEV 2 Jun 2025CISA KEV
Exploit odds (EPSS)1.35%Chance of exploitation activity in the next 30 days, higher than 71% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in5.7.5Also 4.15.3CVE List
Federal deadline23 Jun 2025Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 7 May 2025, 22:41 UTCPublishedCVE List
  2. 2 Jun 2025Added to CISA KEVCISA KEV

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.

Text from CVE List

Affected versions 4

  • CMSaffected: all versions before 5.7.5CVE List
  • CMSunaffected: 5.7.5CVE List
  • CMSaffected: all versions before 4.15.3CVE List
  • CMSunaffected: 4.15.3CVE List

References 7