CVE Watch—

CVE-2025-35939

Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability

CVSS

—

No CVSS

EPSS

1.3%

p69

KEV

YES

Jun 2, 2025

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

1.3%EPSS · 30 days1.3%

2026-08-022026-08-30

KEV catalog record

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

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

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