CVE-2023-28333: Fedoraproject Fedora

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

The Mustache pix helper contained a potential Mustache injection risk if combined with user input (note: This did not appear to be implemented/exploitable anywhere in the core Moodle LMS).

Affected products

• Fedoraproject Fedora: version 36 only
• Moodle Moodle: after 3.9.0, before 3.9.20 (fixed in 3.9.20); after 3.11.0, before 3.11.13 (fixed in 3.11.13); after 4.0.0, before 4.0.7 (fixed in 4.0.7); version 3.9.0 only; version 3.11.0 only; version 4.0.0 only; …

Published 2023-03-23. Last modified 2026-06-17.