{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-66399", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-07-26T12:22:34.139Z", "datePublished": "2026-07-27T15:43:48.767Z", "dateUpdated": "2026-07-28T01:06:34.857Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-28T01:06:34.857Z"}, "datePublic": "2026-07-13T00:00:00.000Z", "title": "phpMyFAQ before 4.1.6 Privilege Escalation via Group Membership", "descriptions": [{"lang": "en", "value": "phpMyFAQ before 4.1.6 contains a privilege escalation vulnerability in GroupController::updateMembers() that allows administrators with only group-management permissions to join privileged groups without verification of required rights. Attackers can add themselves to pre-existing groups holding user-management rights and immediately inherit those permissions to modify or delete user accounts."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Privilege Management", "cweId": "CWE-269", "type": "CWE"}]}], "affected": [{"vendor": "thorsten", "product": "phpMyFAQ", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "4.1.6"}, {"version": "4.1.6", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.1.6"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.5, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-28cc-v39j-vr95", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-28cc-v39j-vr95)"}, {"name": "VulnCheck Advisory: phpMyFAQ before 4.1.6 Privilege Escalation via Group Membership", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/phpmyfaq-before-privilege-escalation-via-group-membership"}], "credits": [{"lang": "en", "value": "geo-chen", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.1.6)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "4.1.6"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "phpMyFAQ", "source": "cna", "vendor": "thorsten"}, "product": "phpmyfaq", "vendor": "thorsten"}], "created": "2026-07-27T18:00:03.832890+00:00", "updated": "2026-07-27T18:00:03.832932+00:00", "vendors": ["thorsten", "thorsten$PRODUCT$phpmyfaq"]}