{"id":"CVE-2026-105193","state":"PUBLISHED","title":"Booking Calendar < 11.8 - Unauthenticated Booking Information Disclosure and Modification via Predictable Booking Hash","description":"The Booking Calendar WordPress plugin before 11.8 does not generate its per-booking access hashes with sufficient entropy, deriving each from a low-entropy time-seeded value, which can allow unauthenticated attackers who are able to determine a booking's creation time to predict the hash and then read that booking's personal data or modify the booking in place.","publishedAt":"2026-10-08T06:00:06.554Z","updatedAt":"2026-10-08T10:59:19.282Z","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 Booking Calendar"],"affected":[{"vendor":"Unknown","product":"Booking Calendar","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"11.8","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/c6a81cf3-095d-4d7e-83c5-80f44327e7fe/"],"weaknesses":["CWE-326"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105193.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105193","state":"PUBLISHED","datePublished":"2026-10-08T06:00:06.554Z","dateUpdated":"2026-10-08T10:59:19.282Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-10-04T11:54:27.415Z"},"containers":{"cna":{"title":"Booking Calendar < 11.8 - Unauthenticated Booking Information Disclosure and Modification via Predictable Booking Hash","descriptions":[{"lang":"en","value":"The Booking Calendar WordPress plugin before 11.8 does not generate its per-booking access hashes with sufficient entropy, deriving each from a low-entropy time-seeded value, which can allow unauthenticated attackers who are able to determine a booking's creation time to predict the hash and then read that booking's personal data or modify the booking in place."}],"affected":[{"vendor":"Unknown","product":"Booking Calendar","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"11.8","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/c6a81cf3-095d-4d7e-83c5-80f44327e7fe/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-326 Inadequate Encryption Strength","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-10-08T06:00:06.554Z"},"credits":[{"lang":"en","value":"Olaf Schigt","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":{"id":"CVE-2026-105193","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-08T10:57:24.949287Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-326","lang":"en","type":"CWE","description":"CWE-326 Inadequate Encryption Strength"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-08T10:59:19.282Z"}}]}}}