{"id":"CVE-2026-39601","state":"PUBLISHED","title":"WordPress Booking Calendar plugin <= 11.8.4 - Race Condition vulnerability","description":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in WPdevelop Booking Calendar booking allows Leveraging Race Conditions.This issue affects Booking Calendar: from n/a through 11.8.4.","publishedAt":"2026-10-02T14:49:13.832Z","updatedAt":"2026-10-05T07:01:17.773Z","severity":{"score":3.7,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","source":"Patchstack"},"assigner":"Patchstack","products":["WPdevelop Booking Calendar"],"affected":[{"vendor":"WPdevelop","product":"Booking Calendar","packageName":"booking","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"11.8.4","versionType":"custom","changes":[{"at":"11.9","status":"unaffected"}]}],"collectionURL":"https://wordpress.org/plugins"}],"references":["https://patchstack.com/database/wordpress/plugin/booking/vulnerability/wordpress-booking-calendar-plugin-11-8-4-race-condition-vulnerability?_s_id=cve"],"weaknesses":["CWE-362"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/39xxx/CVE-2026-39601.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-39601","state":"PUBLISHED","datePublished":"2026-10-02T14:49:13.832Z","dateUpdated":"2026-10-05T07:01:17.773Z","assignerShortName":"Patchstack","assignerOrgId":"21595511-bba5-4825-b968-b78d1f9984a3","dateReserved":"2026-04-07T10:48:50.116Z"},"containers":{"cna":{"title":"WordPress Booking Calendar plugin <= 11.8.4 - Race Condition vulnerability","descriptions":[{"lang":"en","value":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in WPdevelop Booking Calendar booking allows Leveraging Race Conditions.This issue affects Booking Calendar: from n/a through 11.8.4."}],"affected":[{"vendor":"WPdevelop","product":"Booking Calendar","packageName":"booking","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"11.8.4","versionType":"custom","changes":[{"at":"11.9","status":"unaffected"}]}],"collectionURL":"https://wordpress.org/plugins"}],"references":[{"url":"https://patchstack.com/database/wordpress/plugin/booking/vulnerability/wordpress-booking-calendar-plugin-11-8-4-race-condition-vulnerability?_s_id=cve","tags":["vdb-entry"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":3.7,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-362","description":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Patchstack","orgId":"21595511-bba5-4825-b968-b78d1f9984a3","dateUpdated":"2026-10-05T07:01:17.773Z"},"datePublic":"2026-10-02T14:48:00.000Z","credits":[{"lang":"en","value":"Ananda Dhakal (Patchstack)","type":"finder"}],"impacts":[{"capecId":"CAPEC-26","descriptions":[{"lang":"en","value":"Leveraging Race Conditions"}]}],"solutions":[{"lang":"en","value":"Update the WordPress Booking Calendar plugin to the latest available version (at least 11.9).","supportingMedia":[{"type":"text/html","base64":false,"value":"Update the WordPress Booking Calendar plugin to the latest available version (at least 11.9)."}]}],"tags":["x_open-source"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-39601","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-03T15:10:14.376113Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-03T15:12:23.776Z"}}]}}}