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HIGH severity

Moodle Arbitrary file read when importing lesson questionsGHSA-pgm5-cr62-prxq

HIGH

GHSA-pgm5-cr62-prxq is a high-severity (CVSS 7.5) Path Traversal vulnerability in moodle/moodle. EPSS puts its 30-day exploitation probability at 53.7% (99th percentile). A fix is available for moodle/moodle — see the affected versions and patch details below.

Also known asBIT-moodle-2022-35650CVE-2022-35650
Published
Updated
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
53.7%probability of exploitation in next 30 days
High Risk0.00%
Lower risk than most CVEs99th percentile — riskier than 99% of all scored CVEsHighest risk
0.00%23.2%46.4%69.6%0.4%53.7%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

3 pkgs affected
🐘moodle/moodle🐘moodle/moodle🐘moodle/moodle

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

The vulnerability was found in Moodle, occurs due to input validation error when importing lesson questions. This insufficient path checks results in arbitrary file read risk. This vulnerability allows a remote attacker to perform directory traversal attacks. The capability to access this feature is only available to teachers, managers and admins by default.

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistmoodle/moodle≥ 3.9&&< 3.9.153.9.15composer require moodle/moodle:^3.9.15
🐘Packagistmoodle/moodle≥ 3.11&&< 3.11.83.11.8composer require moodle/moodle:^3.11.8
🐘Packagistmoodle/moodle≥ 4.0&&< 4.0.24.0.2composer require moodle/moodle:^4.0.2

Affected Products

2 products · 5 configurations
OS
fedorafedoraproject
2 versions
3536
Application
moodlemoodle
≥ 4.0.0 && < 4.0.2
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for moodle/moodle, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update moodle/moodle to 3.9.15 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-pgm5-cr62-prxq is resolved across your whole dependency graph.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

The vulnerability was found in Moodle, occurs due to input validation error when importing lesson questions. This insufficient path checks results in arbitrary file read risk. This vulnerability allows a remote attacker to perform directory traversal attacks. The capability to access this feature is only available to teachers, managers and admins by default.
O3 Security · Impact-Aware SCA

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Moodle Arbitrary file read when importing lesson questions