Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://abraxaslabs.tech/research/moodle-grades-feedback-idor
- https://github.com/moodle/moodle
- https://github.com/moodle/moodle/blob/v5.3.0/public/grade/classes/external/get_f
- https://www.vulncheck.com/advisories/moodle-through-5.3.0-5.2.4-5.1.8-5.0.11-and
FAQ
What is CVE-2026-119555?
CVE-2026-119555 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 ...
How severe is CVE-2026-119555?
CVE-2026-119555 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119555?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.