Vulnerability · Published Oct 23, 2025 · Assigned by fedora
CVE-2025-62400Moodle: hidden group names visible to event creators
Medium 4.3
In plain English
A medium-severity information exposure in moodle. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 80.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Moodle exposed the names of hidden groups to users who had permission to create calendar events but not to view hidden groups. This could reveal private or restricted group information.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | moodle/moodle | 5.0.3 | GHSA-422v-w6c5-vq42 |
| Packagist | moodle/moodle | 4.5.7 | GHSA-422v-w6c5-vq42 |
| Packagist | moodle/moodle | 4.4.11 | GHSA-422v-w6c5-vq42 |
| Packagist | moodle/moodle | 4.1.21 | GHSA-422v-w6c5-vq42 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| moodle | 5.0.0 – before 5.0.34.5.0 – before 4.5.74.4.0 – before 4.4.114.1.0 – before 4.1.21 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
- https://access.redhat.com/security/cve/CVE-2025-62400 vdb-entry, x_refsource_REDHAT
- RHBZ#2404433 issue-tracking, x_refsource_REDHAT