{"id":"CVE-2026-23622","state":"PUBLISHED","title":"CSRF Protection Bypass: Sensitive endpoints accept GET requests, enabling admin account takeover","description":"Easy!Appointments is a self hosted appointment scheduler. In 1.5.2 and earlier, application/core/EA_Security.php::csrf_verify() only enforces CSRF for POST requests and returns early for non-POST methods. Several application endpoints perform state-changing operations while accepting parameters from GET (or $_REQUEST), so an attacker can perform CSRF by forcing a victim's browser to issue a crafted GET request. Impact: creation of admin accounts, modification of admin email/password, and full admin account takeover.","publishedAt":"2026-01-15T19:28:58.369Z","updatedAt":"2026-01-15T21:34:43.098Z","severity":{"score":7.4,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","source":"GitHub_M"},"assigner":"GitHub_M","products":["alextselegidis easyappointments"],"affected":[{"vendor":"alextselegidis","product":"easyappointments","versions":[{"version":"<= 1.5.2","status":"affected"}]}],"references":["https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-54v4-4685-vwrj"],"weaknesses":["CWE-352"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23622.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23622","state":"PUBLISHED","datePublished":"2026-01-15T19:28:58.369Z","dateUpdated":"2026-01-15T21:34:43.098Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-01-14T16:08:37.482Z"},"containers":{"cna":{"title":"CSRF Protection Bypass: Sensitive endpoints accept GET requests, enabling admin account takeover","descriptions":[{"lang":"en","value":"Easy!Appointments is a self hosted appointment scheduler. In 1.5.2 and earlier, application/core/EA_Security.php::csrf_verify() only enforces CSRF for POST requests and returns early for non-POST methods. Several application endpoints perform state-changing operations while accepting parameters from GET (or $_REQUEST), so an attacker can perform CSRF by forcing a victim's browser to issue a crafted GET request. Impact: creation of admin accounts, modification of admin email/password, and full admin account takeover."}],"affected":[{"vendor":"alextselegidis","product":"easyappointments","versions":[{"version":"<= 1.5.2","status":"affected"}]}],"references":[{"url":"https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-54v4-4685-vwrj","name":"https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-54v4-4685-vwrj","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.4,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-352","lang":"en","description":"CWE-352: Cross-Site Request Forgery (CSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-01-15T19:28:58.369Z"},"source":{"advisory":"GHSA-54v4-4685-vwrj","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-54v4-4685-vwrj","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-15T21:34:33.677067Z","id":"CVE-2026-23622","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-15T21:34:43.098Z"}}]}}}