{"id":"CVE-2026-109312","state":"PUBLISHED","title":"Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Profile Update Form","description":"Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass in processUserProfile(), which checks that the session user exists but not that a pending front-end 2FA session is fully authorized. Attackers with a victim's password who can publish a page form without an access rule can invoke update_user before completing 2FA to disable twofa_enabled and take over the account.","publishedAt":"2026-10-12T16:05:07.605Z","updatedAt":"2026-10-15T02:43:42.835Z","severity":{"score":8.6,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["getgrav grav-plugin-login"],"affected":[{"vendor":"getgrav","product":"grav-plugin-login","defaultStatus":"unaffected","versions":[{"version":"2.7.0","status":"affected","lessThan":"3.9.9","versionType":"semver"},{"version":"3.9.9","status":"unaffected","versionType":"semver"}],"repo":"https://github.com/getgrav/grav-plugin-login"}],"references":["https://github.com/getgrav/grav/security/advisories/GHSA-5rph-jqcf-2x36","https://www.vulncheck.com/advisories/grav-login-plugin-2.7.0-before-3.9.9-2fa-bypass-via-profile-update-form"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:10:33.477Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/109xxx/CVE-2026-109312.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-109312","state":"PUBLISHED","datePublished":"2026-10-12T16:05:07.605Z","dateUpdated":"2026-10-15T02:43:42.835Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-12T14:14:27.021Z"},"containers":{"cna":{"title":"Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Profile Update Form","descriptions":[{"lang":"en","value":"Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass in processUserProfile(), which checks that the session user exists but not that a pending front-end 2FA session is fully authorized. Attackers with a victim's password who can publish a page form without an access rule can invoke update_user before completing 2FA to disable twofa_enabled and take over the account."}],"affected":[{"vendor":"getgrav","product":"grav-plugin-login","defaultStatus":"unaffected","versions":[{"version":"2.7.0","status":"affected","lessThan":"3.9.9","versionType":"semver"},{"version":"3.9.9","status":"unaffected","versionType":"semver"}],"repo":"https://github.com/getgrav/grav-plugin-login"}],"references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-5rph-jqcf-2x36","tags":["vendor-advisory","third-party-advisory"],"name":"GitHub Security Advisory (GHSA-5rph-jqcf-2x36)"},{"url":"https://www.vulncheck.com/advisories/grav-login-plugin-2.7.0-before-3.9.9-2fa-bypass-via-profile-update-form","name":"VulnCheck Advisory: Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Profile Update Form","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-12T16:05:07.605Z"},"datePublic":"2026-09-23T00:00:00.000Z","credits":[{"lang":"en","value":"redwolf1919","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-15T02:43:33.274508Z","id":"CVE-2026-109312","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-15T02:43:42.835Z"}}]}}}