Moodle Inserts Sensitive Information Into Sent Data
Impact
A flaw was found in moodle. During anonymous assignment submissions, user identifiers were inadvertently exposed in URLs. This data exposure allows unauthorized viewers to see internal user IDs, compromising the intended anonymity and potentially leading to information disclosure.
Source excerpt · OSVAffected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
| Affected range | Recorded fix |
|---|---|
| Earlier releases before 4.1.22Ecosystem versions | 4.1.22 |
| From 4.4.0-beta before 4.4.12Ecosystem versions | 4.4.12 |
| From 4.5.0-beta before 4.5.8Ecosystem versions | 4.5.8 |
| From 5.0.0-beta before 5.0.4Ecosystem versions | 5.0.4 |
| From 5.1.0-beta before 5.1.1Ecosystem versions | 5.1.1 |
Version evidence: OSV · GHSA-8jrv-wx83-w3xj
View original version evidence (392 explicit versions)
Original source description
A flaw was found in moodle. During anonymous assignment submissions, user identifiers were inadvertently exposed in URLs. This data exposure allows unauthorized viewers to see internal user IDs, compromising the intended anonymity and potentially leading to information disclosure.
References
- Security advisory nvd.nist.gov/vuln/detail/CVE-2025-67857
- Patch github.com/moodle/moodle/commit/ac30e7e19357f696979b7ffd760a7131b6ad88f6
- Patch github.com/moodle/moodle/commit/c6cb8d971257c04a12a2c5d8510a89cb906f46f0
- Security advisory access.redhat.com/security/cve/CVE-2025-67857
- Source reference bugzilla.redhat.com/show_bug.cgi
- Source reference github.com/moodle/moodle
- Source reference moodle.org/mod/forum/discuss.php