Moodle mod_data CSRF token leak via URLs on edit/delete pages
CVE-2025-3637 Published on April 25, 2025
Moodle: csrf token exposure via url in moodle mod_data module
A security vulnerability was found in Moodle where confidential information that prevents cross-site request forgery (CSRF) attacks was shared publicly through the site's URL. This vulnerability occurred specifically on two types of pages within the mod_data module: edit and delete pages.
Vulnerability Analysis
CVE-2025-3637 can be exploited with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Timeline
Reported to Red Hat.
Made public. 7 days later.
Weakness Type
Use of GET Request Method With Sensitive Query Strings
The web application uses the HTTP GET method to process a request and includes sensitive information in the query string of that requests. The query string can be saved in the browser's history, passed through Referers to other web sites, stored in web logs, or otherwise recorded in other sources. If the query string contains sensitive information such as session identifiers, then attackers can use this information to launch further attacks.
Products Associated with CVE-2025-3637
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Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.