CVE-2025-62400
Moodle: hidden group names visible to event creators
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Moodle: hidden group names visible to event creators
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.
- Record
CVE-2025-62400- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2025-35667
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.
- Record
EUVD-2025-35667- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-422v-w6c5-vq42
Moodle exposed the names of hidden groups to users
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.
- Record
GHSA-422v-w6c5-vq42- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-62400- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-05
OSV
Moodle: hidden group names visible to event creators
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.
- Record
CVE-2025-62400- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-07
OSVGHSA-422v-w6c5-vq42
Moodle exposed the names of hidden groups to users
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.
- Record
GHSA-422v-w6c5-vq42- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2025-62400
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.
- Record
UBUNTU-CVE-2025-62400- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVBIT-moodle-2025-62400 No score
Moodle: hidden group names visible to event creators
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.
- Record
BIT-moodle-2025-62400- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
moodle/moodlePackagist |
5.0.0-beta up to 5.0.3 | 5.0.3 |
moodle/moodlePackagist |
4.5.0-beta up to 4.5.7 | 4.5.7 |
moodle/moodlePackagist |
4.2.0-beta up to 4.4.11 | 4.4.11 |
moodle/moodlePackagist |
before 4.1.21 | 4.1.21 |
moodleBitnami |
4.1.0 up to 4.1.21, 4.4.0 up to 4.4.11, 4.5.0 up to 4.5.7, 5.0.0 up to 5.0.3 | 4.1.214.4.114.5.75.0.3 |
moodle/moodlePackagist |
5.0.0-beta up to 5.0.3, plus listed versions v5.0.0v5.0.0-betav5.0.0-rc1v5.0.0-rc2v5.0.0-rc3v5.0.1v5.0.2 |
5.0.3 |
moodle/moodlePackagist |
4.5.0-beta up to 4.5.7, plus listed versions v4.5.0v4.5.0-betav4.5.0-rc1v4.5.0-rc2v4.5.1 Show 5 moreShow lessv4.5.2v4.5.3v4.5.4v4.5.5v4.5.6 |
4.5.7 |
moodle/moodlePackagist |
4.2.0-beta up to 4.4.11, plus listed versions v4.2.0v4.2.0-betav4.2.0-rc1v4.2.0-rc2v4.2.1 Show 40 moreShow lessv4.2.10v4.2.11v4.2.2v4.2.3v4.2.4v4.2.5v4.2.6v4.2.7v4.2.8v4.2.9v4.3.0v4.3.0-betav4.3.0-rc1v4.3.0-rc2v4.3.1v4.3.10v4.3.11v4.3.12v4.3.2v4.3.3v4.3.4v4.3.5v4.3.6v4.3.7v4.3.8v4.3.9v4.4.0v4.4.0-betav4.4.0-rc1v4.4.0-rc2v4.4.1v4.4.10v4.4.2v4.4.3v4.4.4v4.4.5v4.4.6v4.4.7v4.4.8v4.4.9 |
4.4.11 |
moodle/moodlePackagist |
before 4.1.21, plus listed versions v2.3.10v2.3.11v2.3.4v2.3.5v2.3.6 Show 45 moreShow lessv2.3.7v2.3.8v2.3.9v2.4.0v2.4.0-rc1v2.4.1v2.4.10v2.4.11v2.4.2v2.4.3v2.4.4v2.4.5v2.4.6v2.4.7v2.4.8v2.4.9v2.5.0v2.5.0-betav2.5.0-rc1v2.5.1v2.5.2v2.5.3v2.5.4v2.5.5v2.5.6v2.5.7v2.5.8v2.5.9v2.6.0v2.6.0-betav2.6.0-rc1v2.6.1v2.6.10v2.6.11v2.6.2v2.6.3v2.6.4v2.6.5v2.6.6v2.6.7v2.6.8v2.6.9v2.7.0v2.7.0-betav2.7.0-rc1 |
4.1.21 |
moodleUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 2.7.9+dfsg-12.7.10+dfsg-12.7.11+dfsg-12.7.11+dfsg-22.7.12+dfsg-13.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 |
None known |
moodleUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 3.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | NVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-62400 is a medium vulnerability (CVSS 4.3) in Moodle, published October 23, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. Fixed in moodle/moodle 5.0.3.
References
Left out here: 303 versions. The JSON record has them.