Distribution advisory
This page covers CVE-2025-3636 as tracked by Ubuntu, for the package moodle. No fixed version has been recorded for this distribution yet.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: Low — an ordinary user account is enough.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
- Integrity impact: None.
- Availability impact: None.
Weakness class
UBUNTU-CVE-2025-3636 is classified as CWE-639: Authorization Bypass Through User-Controlled Key. An object is selected by an identifier from the request without checking the caller owns it.
Affected software
UBUNTU-CVE-2025-3636 is recorded against 1 package.
Timeline and source
Published on 25 April 2025 and last revised on 24 October 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
www.cve.org (Report)
git.moodle.org (Report)
access.redhat.com (Report)
bugzilla.redhat.com (Report)
Other advisories for this package
moodle has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-639: Authorization Bypass Through User-Controlled Key) in other software:
