{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119555","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-30T10:53:27.819Z","datePublished":"2026-10-30T11:31:05.504Z","dateUpdated":"2026-10-30T11:31:05.504Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-30T11:31:05.504Z"},"datePublic":"2026-10-12T00:00:00.000Z","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","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Authorization Bypass Through User-Controlled Key","cweId":"CWE-639","type":"CWE"}]}],"affected":[{"vendor":"Moodle Project","product":"moodle","defaultStatus":"unaffected","versions":[{"version":"5.3.0","status":"affected","versionType":"semver"},{"version":"5.2.0","lessThanOrEqual":"5.2.4","status":"affected","versionType":"semver"},{"version":"5.1.0","lessThanOrEqual":"5.1.8","status":"affected","versionType":"semver"},{"version":"5.0.0","lessThanOrEqual":"5.0.11","status":"affected","versionType":"semver"},{"version":"4.2.0","lessThanOrEqual":"4.5.15","status":"affected","versionType":"semver"}],"collectionURL":"https://git.moodle.org","repo":"https://github.com/moodle/moodle","packageName":"moodle","packageURL":"pkg:github/moodle/moodle"}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:moodle:moodle:5.3.0:*:*:*:*:*:*:*"},{"vulnerable":true,"criteria":"cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2.0","versionEndIncluding":"5.2.4"},{"vulnerable":true,"criteria":"cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1.0","versionEndIncluding":"5.1.8"},{"vulnerable":true,"criteria":"cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0.0","versionEndIncluding":"5.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2.0","versionEndIncluding":"4.5.15"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/moodle/moodle/blob/v5.3.0/public/grade/classes/external/get_feedback.php#L77-L96","tags":["technical-description"]},{"url":"https://abraxaslabs.tech/research/moodle-grades-feedback-idor","tags":["third-party-advisory"]},{"url":"https://github.com/moodle/moodle","tags":["product"]},{"name":"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":["third-party-advisory"],"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"}],"credits":[{"lang":"en","value":"Abraxas Labs","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}