GHSA-2hh3-jmv8-5fmx
MEDIUMGHSA-2hh3-jmv8-5fmx is a medium-severity (CVSS 5.4) CWE-74 vulnerability in moodle/moodle. O3 Security confirms whether GHSA-2hh3-jmv8-5fmx is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Moodle Does Not Escape Characters In Email Headers
Blast Radius
moodle/moodle🐘moodle/moodle🐘moodle/moodle🐘moodle/moodle🐘moodle/moodleReal-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
In Moodle 2.x and 3.x, text injection can occur in email headers, potentially leading to outbound spam.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | moodle/moodle | ≥ 3.1&&< 3.1.1 | 3.1.1 |
| 🐘Packagist | moodle/moodle | ≥ 3.0&&< 3.0.5 | 3.0.5 |
| 🐘Packagist | moodle/moodle | ≥ 2.9&&< 2.9.7 | 2.9.7 |
| 🐘Packagist | moodle/moodle | ≥ 2.8 | No fix |
| 🐘Packagist | moodle/moodle | ≥ 2.7&&< 2.7.15 | 2.7.15 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for moodle/moodle. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update moodle/moodle to 3.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-2hh3-jmv8-5fmx is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-2hh3-jmv8-5fmx is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-2hh3-jmv8-5fmx. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-2hh3-jmv8-5fmx in your dependencies?
O3 detects GHSA-2hh3-jmv8-5fmx across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.