{"id":"CVE-2026-5693","state":"PUBLISHED","title":"Smart Appointment & Booking <= 1.0.8 - Missing Authorization to Unauthenticated Arbitrary Booking Cancellation","description":"The Smart Appointment & Booking plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check and a nonce validation logic flaw in the saab_cancel_booking() function in all versions up to, and including, 1.0.8. The nonce check uses && (AND) instead of || (OR), which means providing any value for the security parameter causes the entire check to be skipped. This makes it possible for unauthenticated attackers to cancel arbitrary bookings by supplying a predictable booking ID.","publishedAt":"2026-05-12T07:48:26.131Z","updatedAt":"2026-05-12T12:47:37.797Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["zealopensource Smart Appointment & Booking"],"affected":[{"vendor":"zealopensource","product":"Smart Appointment & Booking","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.0.8","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/afc3531d-6134-4b45-b532-37430d96a8fb?source=cve","https://plugins.trac.wordpress.org/browser/smart-appointment-booking/trunk/inc/front/class.saab.front.action.php#L2558","https://plugins.trac.wordpress.org/browser/smart-appointment-booking/tags/1.0.8/inc/front/class.saab.front.action.php#L2558","https://wordpress.org/plugins/smart-appointment-booking/"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/5xxx/CVE-2026-5693.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-5693","state":"PUBLISHED","datePublished":"2026-05-12T07:48:26.131Z","dateUpdated":"2026-05-12T12:47:37.797Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-04-06T11:20:41.603Z"},"containers":{"cna":{"title":"Smart Appointment & Booking <= 1.0.8 - Missing Authorization to Unauthenticated Arbitrary Booking Cancellation","descriptions":[{"lang":"en","value":"The Smart Appointment & Booking plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check and a nonce validation logic flaw in the saab_cancel_booking() function in all versions up to, and including, 1.0.8. The nonce check uses && (AND) instead of || (OR), which means providing any value for the security parameter causes the entire check to be skipped. This makes it possible for unauthenticated attackers to cancel arbitrary bookings by supplying a predictable booking ID."}],"affected":[{"vendor":"zealopensource","product":"Smart Appointment & Booking","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.0.8","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/afc3531d-6134-4b45-b532-37430d96a8fb?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/smart-appointment-booking/trunk/inc/front/class.saab.front.action.php#L2558"},{"url":"https://plugins.trac.wordpress.org/browser/smart-appointment-booking/tags/1.0.8/inc/front/class.saab.front.action.php#L2558"},{"url":"https://wordpress.org/plugins/smart-appointment-booking/"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":5.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862 Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-05-12T07:48:26.131Z"},"credits":[{"lang":"en","type":"finder","value":"Itthidej Aramsri"}],"timeline":[{"time":"2026-05-11T19:03:39.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-12T12:46:58.507865Z","id":"CVE-2026-5693","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-12T12:47:37.797Z"}}]}}}