{"id":"CVE-2026-91847","state":"PUBLISHED","title":"Bookly < 28.2 - Unauthenticated AI Assistant Conversation Disclosure and Message Injection via IDOR","description":"The Online Scheduling and Appointment Booking System  WordPress plugin before 28.2 does not verify that the requester owns the AI booking-assistant conversation named in its unauthenticated conversation actions, allowing any unauthenticated visitor to read another visitor's assistant messages and to inject messages into their in-progress conversation.","publishedAt":"2026-09-19T06:00:17.100Z","updatedAt":"2026-09-19T13:18:25.713Z","severity":{"score":4.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Online Scheduling and Appointment Booking System"],"affected":[{"vendor":"Unknown","product":"Online Scheduling and Appointment Booking System","defaultStatus":"unaffected","versions":[{"version":"28.1","status":"affected","lessThan":"28.2","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/9eef3086-3a67-4ee2-bd78-e346e7b05d62/"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/91xxx/CVE-2026-91847.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-91847","state":"PUBLISHED","datePublished":"2026-09-19T06:00:17.100Z","dateUpdated":"2026-09-19T13:18:25.713Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-09-15T08:36:37.677Z"},"containers":{"cna":{"title":"Bookly < 28.2 - Unauthenticated AI Assistant Conversation Disclosure and Message Injection via IDOR","descriptions":[{"lang":"en","value":"The Online Scheduling and Appointment Booking System  WordPress plugin before 28.2 does not verify that the requester owns the AI booking-assistant conversation named in its unauthenticated conversation actions, allowing any unauthenticated visitor to read another visitor's assistant messages and to inject messages into their in-progress conversation."}],"affected":[{"vendor":"Unknown","product":"Online Scheduling and Appointment Booking System","defaultStatus":"unaffected","versions":[{"version":"28.1","status":"affected","lessThan":"28.2","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/9eef3086-3a67-4ee2-bd78-e346e7b05d62/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-09-19T06:00:17.100Z"},"credits":[{"lang":"en","value":"vuxvinh","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":4.8,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-19T13:11:43.956388Z","id":"CVE-2026-91847","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","type":"CWE","lang":"en","description":"CWE-639 Authorization Bypass Through User-Controlled Key"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-19T13:18:25.713Z"}}]}}}