Is CVE-2026-119555 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-119555 being exploited in the wild.

How severe is CVE-2026-119555?

Medium severity, with a CVSS score of 4.3, published 30 October 2026.

Which products and versions are affected?

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, 5.3.0.

Is there a fix for CVE-2026-119555?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-119555 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-119555?

Check whether you run Moodle at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-119555: Moodle core_grades_get_feedback information disclosure

CVE-2026-119555 · Severity: medium · CVSS 4.3 · Published 2026-10-30

Moodle, an open-source learning management system used by schools and universities, contains a vulnerability in its grade feedback service that allows teachers with limited access to view other groups' student grades and personal information. A non-editing teacher in one class group can exploit missing access controls to read feedback, names, email addresses, and other identity fields from students in different groups they should not have access to.

Technologies: Moodle. Vendors: Moodle.

Quick answers

Is CVE-2026-119555 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-119555 being exploited in the wild.
How severe is CVE-2026-119555?: Medium severity, with a CVSS score of 4.3, published 30 October 2026.
Which products and versions are affected?: 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, 5.3.0.
Is there a fix for CVE-2026-119555?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-119555 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-119555?: Check whether you run Moodle at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The core_grades_get_feedback web service in Moodle lacks group-membership and enrolment checks, validating only the gradereport/grader:view capability. A non-editing teacher without moodle/site:accessallgroups can iterate userid parameter values via AJAX to retrieve grade feedback, student names, picture URLs, and identity fields (such as email) for users in other course groups. The vulnerability exists because sibling web services received group-access controls in MSA-26-0016, but get_feedback.php was overlooked and remains unpatched.

Affected products

Moodle 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, 5.3.0

Timeline

2026-10-30: disclosed
2026-10-12: other: Proof-of-concept published by Abraxas Labs

References

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