Moodle makes some user data available before completing second factor with MFA enabled
The advisory, in context
A security vulnerability was discovered in Moodle that allows some users to access sensitive information about other students before they finish verifying their identities using two-factor authentication (2FA).
Affected 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.
From 4.3.0-beta before 4.3.12
Fixed in 4.3.12
15 explicitly affected versions
v4.3.0, v4.3.0-beta, v4.3.0-rc1, v4.3.0-rc2, v4.3.1, v4.3.10, v4.3.11, v4.3.2, v4.3.3, v4.3.4, v4.3.5, v4.3.6, v4.3.7, v4.3.8, v4.3.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "4.3.0-beta"
},
{
"fixed": "4.3.12"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v4.3.0",
"v4.3.0-beta",
"v4.3.0-rc1",
"v4.3.0-rc2",
"v4.3.1",
"v4.3.10",
"v4.3.11",
"v4.3.2",
"v4.3.3",
"v4.3.4",
"v4.3.5",
"v4.3.6",
"v4.3.7",
"v4.3.8",
"v4.3.9"
]
}From 4.4.0-beta before 4.4.8
Fixed in 4.4.8
11 explicitly affected versions
v4.4.0, v4.4.0-beta, v4.4.0-rc1, v4.4.0-rc2, v4.4.1, v4.4.2, v4.4.3, v4.4.4, v4.4.5, v4.4.6, v4.4.7
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "4.4.0-beta"
},
{
"fixed": "4.4.8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v4.4.0",
"v4.4.0-beta",
"v4.4.0-rc1",
"v4.4.0-rc2",
"v4.4.1",
"v4.4.2",
"v4.4.3",
"v4.4.4",
"v4.4.5",
"v4.4.6",
"v4.4.7"
]
}From 4.5.0-beta before 4.5.4
Fixed in 4.5.4
7 explicitly affected versions
v4.5.0, v4.5.0-beta, v4.5.0-rc1, v4.5.0-rc2, v4.5.1, v4.5.2, v4.5.3
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "4.5.0-beta"
},
{
"fixed": "4.5.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v4.5.0",
"v4.5.0-beta",
"v4.5.0-rc1",
"v4.5.0-rc2",
"v4.5.1",
"v4.5.2",
"v4.5.3"
]
}References
- https://nvd.nist.gov/vuln/detail/CVE-2025-3627
- https://access.redhat.com/security/cve/CVE-2025-3627
- https://bugzilla.redhat.com/show_bug.cgi?id=2359692
- https://github.com/moodle/moodle
- https://github.com/search?q=repo%3Amoodle%2Fmoodle+MDL-84351&type=commits
- https://moodle.org/mod/forum/discuss.php?d=467594