CVE-2025-3645: Moodle: idor in messaging web service allows access to some user details

Medium severity · published Apr 25, 2025

CVE-2025-3645

Moodle: idor in messaging web service allows access to some user details

4.3

CVSS

0.4%

EPSS

On KEV

Description

A flaw was found in Moodle. Insufficient capability checks in a messaging web service allowed users to view other users' names and online statuses.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack vector

Network

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

Low

Integrity

None

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.4% · higher than 30% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Moodle · Moodle

before 4.1.18; 4.3.0 before 4.3.12; 4.4.0 before 4.4.8; 4.5.0 before 4.5.4 · source: NVD

Affected product

Moodle

All Moodle CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-3645

CVE.org

https://www.cve.org/CVERecord?id=CVE-2025-3645

Third Party Advisory

https://access.redhat.com/security/cve/CVE-2025-3645

Issue Tracking

https://bugzilla.redhat.com/show_bug.cgi?id=2359761

Vendor Advisory

https://moodle.org/mod/forum/discuss.php?d=467606