CVE-2025-3635: Moodle: csrf risk in moodle user tours manager allows tour duplication

Severity: low (CVSS 3.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-04-25 · updated 2026-06-17
Weakness: CWE-352

Description

A security vulnerability was discovered in Moodle that allows anyone to duplicate existing tours without needing to log in due to a lack of protection against cross-site request forgery (CSRF) attacks.

Affected products

Moodle: before 4.1.18; from 4.3.0 before 4.3.12; from 4.4.0 before 4.4.8; from 4.5.0 before 4.5.4 — fixed in 4.1.18, 4.3.12, 4.4.8, 4.5.4

How to fix

Upgrade to a fixed version: Moodle 4.1.18, 4.3.12, 4.4.8, 4.5.4. Check the vendor advisory for mitigations.

References

https://access.redhat.com/security/cve/CVE-2025-3635
https://bugzilla.redhat.com/show_bug.cgi?id=2359709

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