{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-67853", "assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5", "state": "PUBLISHED", "assignerShortName": "fedora", "dateReserved": "2025-12-12T13:00:24.330Z", "datePublished": "2026-02-03T10:52:12.755Z", "dateUpdated": "2026-02-03T10:52:12.755Z"}, "containers": {"cna": {"title": "Moodle: moodle: brute-force facilitation due to missing rate limiting in confirmation email service", "metrics": [{"other": {"content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in Moodle. A remote attacker could exploit a lack of proper rate limiting in the confirmation email service. This vulnerability allows attackers to more easily enumerate or guess user credentials, facilitating brute-force attacks against user accounts."}], "affected": [{"versions": [{"status": "affected", "version": "4.1.0", "lessThan": "4.1.22", "versionType": "semver"}, {"status": "affected", "version": "4.4.0", "lessThan": "4.4.12", "versionType": "semver"}, {"status": "affected", "version": "4.5.0", "lessThan": "4.5.8", "versionType": "semver"}, {"status": "affected", "version": "5.0.0", "lessThan": "5.0.4", "versionType": "semver"}, {"status": "affected", "version": "5.1.0", "lessThan": "5.1.1", "versionType": "semver"}], "packageName": "moodle", "collectionURL": "https://github.com/moodle/moodle/", "defaultStatus": "unaffected"}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2025-67853", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2423847", "name": "RHBZ#2423847", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2025-12-15T04:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-307", "description": "Improper Restriction of Excessive Authentication Attempts", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-307: Improper Restriction of Excessive Authentication Attempts", "timeline": [{"lang": "en", "time": "2025-12-19T12:15:54.071000+00:00", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2025-12-15T04:00:00+00:00", "value": "Made public."}], "credits": [{"lang": "en", "value": "Red Hat would like to thank Petr Skoda for reporting this issue."}], "providerMetadata": {"orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5", "shortName": "fedora", "dateUpdated": "2026-02-03T10:52:12.755Z"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in Moodle. A remote attacker could exploit a lack of proper rate limiting in the confirmation email service. This vulnerability allows attackers to more easily enumerate or guess user credentials, facilitating brute-force attacks against user accounts."}], "id": "CVE-2025-67853", "lastModified": "2026-02-03T11:15:55.663", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "patrick@puiterwijk.org", "type": "Secondary"}]}, "published": "2026-02-03T11:15:55.663", "references": [{"source": "patrick@puiterwijk.org", "url": "https://access.redhat.com/security/cve/CVE-2025-67853"}, {"source": "patrick@puiterwijk.org", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2423847"}], "sourceIdentifier": "patrick@puiterwijk.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-307"}], "source": "patrick@puiterwijk.org", "type": "Secondary"}]}

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