Moodle Open redirect risk in mobile auto-login featureGHSA-243v-5pff-qqfj
MEDIUMGHSA-243v-5pff-qqfj is a medium-severity (CVSS 6.1) Open Redirect vulnerability in moodle/moodle. A fix is available for moodle/moodle — see the affected versions and patch details below.
EPSS Exploitation Probability
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
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
An open redirect issue was found in Moodle due to improper sanitization of user-supplied data in mobile auto-login feature. A remote attacker can create a link that leads to a trusted website, however, when clicked, it redirects the victims to arbitrary URL/domain. Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | moodle/moodle | ≥ 4.0&&< 4.0.2 | 4.0.2composer require moodle/moodle:^4.0.2 |
| 🐘Packagist | moodle/moodle | ≥ 3.11&&< 3.11.8 | 3.11.8composer require moodle/moodle:^3.11.8 |
| 🐘Packagist | moodle/moodle | ≥ 3.9&&< 3.9.15 | 3.9.15composer require moodle/moodle:^3.9.15 |
Affected Products
fedorafedoraprojectmoodlemoodleDetection & mitigation playbook
Open-source dependencyDetect
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.
Fix
Update moodle/moodle to 4.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-243v-5pff-qqfj is resolved across your whole dependency graph.
Workarounds
Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.
Frequently Asked Questions
Is GHSA-243v-5pff-qqfj in your dependencies?
Find it across Packagist, including transitive dependencies.