CVE-2025-35939

Craft CMS Craft CMS — Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability
⚠️ CVSS 3.1  5.3 / 10 — MEDIUM 🔴 CISA Known Exploited Vulnerability

Overview

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.

https://github.com/craftcms/cms/pull/17220 ; https://nvd.nist.gov/vuln/detail/CVE-2025-35939

Key Details

PropertyValue
CVE ID CVE-2025-35939
Vendor / Product Craft CMS — Craft CMS
NVD Published2025-05-07
NVD Last Modified2025-10-24
CVSS 3.1 Score5.3
CVSS 3.1 VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SeverityMEDIUM
CWE CWE-472
CISA KEV Added2025-06-02
CISA KEV Deadline2025-06-23
Known Ransomware Use No

CVSS 3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Required Action

CISA BOD 22-01 Deadline: 2025-06-23. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Timeline

DateEvent
2025-06-02Added to CISA Known Exploited Vulnerabilities catalog
2025-06-23CISA BOD 22-01 remediation deadline

References

ResourceType
NVD — CVE-2025-35939 Vulnerability Database
CISA KEV Catalog Entry US Government