CVE-2026-119555 Moodle through 5.3.0, 5.2.4, 5.1.8, 5.0.11 and 4.5.15 Information Disclosure via core_grades_get_feedback

Medium 5.3 Published 30 Oct 2026 Updated 5 Nov 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-119555?

CVE-2026-119555 is a medium-severity vulnerability in moodle, published on 30 Oct 2026.

Official description

Moodle 4.2.0 through 4.5.15, 5.0.0 through 5.0.11, 5.1.0 through 5.1.8, 5.2.0 through 5.2.4, and 5.3.0 contain an information disclosure vulnerability in the core_grades_get_feedback web service. The service lacks group-membership and enrolment checks, so non-editing teachers can iterate userid values to read other groups' grade feedback and users' names and identity fields such as email.

Weakness: CWE-639

Which versions are affected by CVE-2026-119555?

How do I fix CVE-2026-119555?

No fix has been published for CVE-2026-119555 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-119555 being exploited?

There is no known exploitation of CVE-2026-119555 in the wild and no public exploit code.

Sources

Also known as GHSA-32c3-9m45-xg9f, UBUNTU-CVE-2026-119555.