GHSA-g6h6-4fp6-w33w

GitHub Security Advisory

Moodle vulnerable to Stored Cross-site Scripting

✓ GitHub Reviewed MODERATE Has CVE

In Moodle, ID numbers exported in HTML data formats required additional sanitizing to prevent a local stored XSS risk.

Packagist moodle/moodle

Affected versions: 3.11.0-beta (fixed in 3.11.1)

Packagist moodle/moodle

Affected versions: 3.10.0-beta (fixed in 3.10.5)

Packagist moodle/moodle

Affected versions: 0 (fixed in 3.9.8)

CVE-2021-36401

GHSA ID

GHSA-g6h6-4fp6-w33w

Published

March 7, 2023 12:30 AM

Last Modified

March 7, 2025 7:13 PM

CVSS Score

5.0 /10

Primary Ecosystem

Packagist

Primary Package

moodle/moodle

GitHub Reviewed

✓ Yes

Last updated: July 30, 2025 6:36 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.