{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52838","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-08T18:41:27.724Z","datePublished":"2026-07-14T15:07:43.865Z","dateUpdated":"2026-07-14T16:26:53.608Z"},"containers":{"cna":{"title":"Easy!Appointments disable_booking_message rendered as raw HTML on public booking page — Stored XSS","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"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"}}],"references":[{"name":"https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-996f-334j-67g7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-996f-334j-67g7"},{"name":"https://github.com/alextselegidis/easyappointments/commit/629a0415f54f75556c17f4f5d9c77fda1fdbdeae","tags":["x_refsource_MISC"],"url":"https://github.com/alextselegidis/easyappointments/commit/629a0415f54f75556c17f4f5d9c77fda1fdbdeae"}],"affected":[{"vendor":"alextselegidis","product":"easyappointments","versions":[{"version":"< 1.6.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-14T15:07:43.865Z"},"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."}],"source":{"advisory":"GHSA-996f-334j-67g7","discovery":"UNKNOWN"}},"adp":[{"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"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-14T16:26:53.608Z"}}]}}