{"id":"CVE-2026-40485","state":"PUBLISHED","title":"ChurchCRM: Username Enumeration via Differential Response in Public Login API","description":"ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the public API login endpoint (/api/public/user/login) returns distinguishable HTTP response codes based on whether a username exists: 404 for non-existent users and 401 for valid users with incorrect passwords. An unauthenticated attacker can exploit this difference to enumerate valid usernames, with no rate limiting or account lockout to impede the process. This issue has been fixed in version 7.2.0.","publishedAt":"2026-04-17T23:29:35.884Z","updatedAt":"2026-04-20T13:36:05.319Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["ChurchCRM CRM"],"affected":[{"vendor":"ChurchCRM","product":"CRM","versions":[{"version":"< 7.2.0","status":"affected"}]}],"references":["https://github.com/ChurchCRM/CRM/security/advisories/GHSA-x2qh-xmhq-4jpx","https://github.com/ChurchCRM/CRM/pull/8607","https://github.com/ChurchCRM/CRM/commit/214694eb83778e1f5e52b3dfa2a99d0e965c1850"],"weaknesses":["CWE-307","CWE-204"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40485.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40485","state":"PUBLISHED","datePublished":"2026-04-17T23:29:35.884Z","dateUpdated":"2026-04-20T13:36:05.319Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-13T19:50:42.114Z"},"containers":{"cna":{"title":"ChurchCRM: Username Enumeration via Differential Response in Public Login API","descriptions":[{"lang":"en","value":"ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the public API login endpoint (/api/public/user/login) returns distinguishable HTTP response codes based on whether a username exists: 404 for non-existent users and 401 for valid users with incorrect passwords. An unauthenticated attacker can exploit this difference to enumerate valid usernames, with no rate limiting or account lockout to impede the process. This issue has been fixed in version 7.2.0."}],"affected":[{"vendor":"ChurchCRM","product":"CRM","versions":[{"version":"< 7.2.0","status":"affected"}]}],"references":[{"url":"https://github.com/ChurchCRM/CRM/security/advisories/GHSA-x2qh-xmhq-4jpx","name":"https://github.com/ChurchCRM/CRM/security/advisories/GHSA-x2qh-xmhq-4jpx","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/ChurchCRM/CRM/pull/8607","name":"https://github.com/ChurchCRM/CRM/pull/8607","tags":["x_refsource_MISC"]},{"url":"https://github.com/ChurchCRM/CRM/commit/214694eb83778e1f5e52b3dfa2a99d0e965c1850","name":"https://github.com/ChurchCRM/CRM/commit/214694eb83778e1f5e52b3dfa2a99d0e965c1850","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-307","lang":"en","description":"CWE-307: Improper Restriction of Excessive Authentication Attempts","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-204","lang":"en","description":"CWE-204: Observable Response Discrepancy","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-17T23:29:35.884Z"},"source":{"advisory":"GHSA-x2qh-xmhq-4jpx","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-40485","role":"CISA Coordinator","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-04-20T13:28:51.363754Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-20T13:36:05.319Z"}}]}}}