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CVE-2025-35939

CWE-472

Medium

63.6

RPS

Description

Craft CMS stores arbitrary content provided by unauthenticated users in session files. This content could be accessed and executed, possibly using an independent vulnerability. Craft CMS redirects requests that require authentication to the login page and generates a session file on the server at '/var/lib/php/sessions'. Such session files are named 'sess_[session_value]', where '[session_value]' is provided to the client in a 'Set-Cookie' response header. Craft CMS stores the return URL requested by the client without sanitizing parameters. Consequently, an unauthenticated client can introduce arbitrary values, such as PHP code, to a known local file location on the server. Craft CMS versions 5.7.5 and 4.15.3 have been released to address this issue.

Source: NVD

Signals

CVSS
5.3
Medium · v3.1
EPSS
1.34%
Probability of exploitation in the next 30 days (FIRST)
CISA KEV
In CISA KEV since Jun 2025
Fix commit
No known fix commit
Sources: MoreFixes, FreshFixes
Weakness
CWE-472
Published
8 May 2025
Last modified 24 Oct 2025

How to read these signals: RPS · EPSS · CISA KEV · Data sources

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Data as of 7 Oct 2026, 05:16 UK time

CVE-2025-35939 · RPS 63.6 · DevSecure Intelligence