CVE-2023-28333 Moodle: pix helper potential mustache code injection risk

What is CVE-2023-28333?

CVE-2023-28333 is a critical code injection vulnerability in Fedoraproject Fedora, published on 23 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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).

Weakness: CWE-94

Which versions are affected by CVE-2023-28333?

9 open source packages ship an affected version, including moodle/moodle and moodle. It affects 2 products.

Products include Fedoraproject Fedora, Moodle Moodle.

How do I fix CVE-2023-28333?

Upgrade moodle/moodle to a fixed version for your release line: 3.9.20, 3.11.13, 4.0.7 or 4.1.2.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2023-28333 being exploited?

There is no known exploitation of CVE-2023-28333 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-moodle-2023-28333, GHSA-q2x3-2f9g-h559, UBUNTU-CVE-2023-28333.