{"id":"CVE-2026-52838","state":"PUBLISHED","title":"Easy!Appointments disable_booking_message rendered as raw HTML on public booking page — Stored XSS","description":"Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 allow administrators to define a custom \"booking disabled\" message through the booking settings page. That value is stored in the `disable_booking_message` setting via a rich-text editor and later passed directly to the public `booking_message` view without escaping or sanitization. An authenticated administrator can store HTML or JavaScript in this field, enable disabled-booking mode, and trigger stored XSS in every unauthenticated visitor who opens the public booking page. Version 1.6.0 fixes the issue.","publishedAt":"2026-07-14T15:07:43.865Z","updatedAt":"2026-07-14T16:26:53.608Z","severity":{"score":2.6,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["alextselegidis easyappointments"],"affected":[{"vendor":"alextselegidis","product":"easyappointments","versions":[{"version":"< 1.6.0","status":"affected"}]}],"references":["https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-996f-334j-67g7","https://github.com/alextselegidis/easyappointments/commit/629a0415f54f75556c17f4f5d9c77fda1fdbdeae"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/52xxx/CVE-2026-52838.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52838","state":"PUBLISHED","datePublished":"2026-07-14T15:07:43.865Z","dateUpdated":"2026-07-14T16:26:53.608Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-08T18:41:27.724Z"},"containers":{"cna":{"title":"Easy!Appointments disable_booking_message rendered as raw HTML on public booking page — Stored XSS","descriptions":[{"lang":"en","value":"Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 allow administrators to define a custom \"booking disabled\" message through the booking settings page. That value is stored in the `disable_booking_message` setting via a rich-text editor and later passed directly to the public `booking_message` view without escaping or sanitization. An authenticated administrator can store HTML or JavaScript in this field, enable disabled-booking mode, and trigger stored XSS in every unauthenticated visitor who opens the public booking page. Version 1.6.0 fixes the issue."}],"affected":[{"vendor":"alextselegidis","product":"easyappointments","versions":[{"version":"< 1.6.0","status":"affected"}]}],"references":[{"url":"https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-996f-334j-67g7","name":"https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-996f-334j-67g7","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/alextselegidis/easyappointments/commit/629a0415f54f75556c17f4f5d9c77fda1fdbdeae","name":"https://github.com/alextselegidis/easyappointments/commit/629a0415f54f75556c17f4f5d9c77fda1fdbdeae","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":2.6,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-14T15:07:43.865Z"},"source":{"advisory":"GHSA-996f-334j-67g7","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-996f-334j-67g7","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-14T15:59:57.528356Z","id":"CVE-2026-52838","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-14T16:26:53.608Z"}}]}}}