{"id":"CVE-2026-119555","title":"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","summary":"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 en…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cvssSource":"cna","cwe":["CWE-639"],"vendor":"Moodle Project","product":"moodle","affected":["moodle 5.3.0","moodle >= 5.2.0 <= 5.2.4","moodle >= 5.1.0 <= 5.1.8","moodle >= 5.0.0 <= 5.0.11","moodle >= 4.2.0 <= 4.5.15"],"published":"2026-10-30","updated":"2026-10-30","sourceUpdated":"2026-10-30T11:31:05.504Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119555","references":[{"url":"https://github.com/moodle/moodle/blob/v5.3.0/public/grade/classes/external/get_feedback.php#L77-L96"},{"url":"https://abraxaslabs.tech/research/moodle-grades-feedback-idor"},{"url":"https://github.com/moodle/moodle"},{"url":"https://www.vulncheck.com/advisories/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","label":"VulnCheck Advisory: 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"}],"tags":["cve.org"],"epss":0.00217,"epssPercentile":0.12166,"ingestedAt":"2026-11-03T11:43:15.772Z","slug":"CVE-2026-119555","body":"## Overview\n\nMoodle 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.\n\n## Affected\n\n- `moodle 5.3.0`\n- `moodle >= 5.2.0 <= 5.2.4`\n- `moodle >= 5.1.0 <= 5.1.8`\n- `moodle >= 5.0.0 <= 5.0.11`\n- `moodle >= 4.2.0 <= 4.5.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}