Vulnerability · Published Sep 30, 2026 · Assigned by fedora
CVE-2026-102584Moodle: missing capability check allows unauthorised grade penalty recalculation
Medium 4.3
In plain English
A medium-severity security flaw in moodle. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.2%top 90.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A flaw was found in Moodle. Due to a missing capability check, a low-privileged authenticated user can trigger the recalculation of grade penalties without holding the required permissions. This issue allows unauthorized users to modify grade penalty records, potentially altering student assessment scores.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| moodle | 5.2.0 – before 5.2.25.1.0 – before 5.1.65.0.0 – before 5.0.9 |
Weakness: CWE-425 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
References
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-88585
- https://access.redhat.com/security/cve/CVE-2026-102584 vdb-entry, x_refsource_REDHAT
- RHBZ#2543637 issue-tracking, x_refsource_REDHAT
- https://moodle.org/mod/forum/discuss.php?d=482502