{"schemaVersion":3,"id":"CVE-2026-2230","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"The Booking Calendar plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 10.14.14 via the handle_ajax_save function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, and booking permissions granted by an Administrator, to modify other users' plugin settings, such as booking calendar display options, which can disrupt the booking calendar functionality for the targeted user.","dates":{"published":"2026-02-18T16:28:14.595Z","modified":"2026-04-08T16:56:42.711Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":4.3,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":4.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":4.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"wordfence","score":4.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.0022,"percentile":0.11848,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.023000000000000017,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00197},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.0019,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.0019,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.0019,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.0022,"percentile":0.11848}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00197,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.0022,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.0022,"percentile":0.11848}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key","description":"The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/639.html"}],"affected":[{"vendor":"wordpress","product":"booking","name":"Booking Calendar","label":"booking","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 10.14.14 (fixed in 10.14.15)","noFixRecorded":false,"fixedIn":"10.14.15"}],"versionsText":"≤ 10.14.14 (fixed in 10.14.15)","eol":null,"hubHref":null},{"vendor":"wpdevelop","product":"booking calendar","name":"Booking Calendar","label":"booking calendar","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 10.14.14","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 10.14.14","eol":null,"hubHref":"/vendor/wpdevelop/booking_calendar"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/60f7df44-22f9-4a9e-a20c-4b8628674079?source=cve","label":"www.wordfence.com/threat-intel/vulnerabilities/id/60f7df44-22f9-4a9e-a20c-4b8628674079?source=cve","hostname":"www.wordfence.com","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/booking/trunk/includes/save-user-meta/save-user-meta.php#L90","label":"plugins.trac.wordpress.org/browser/booking/trunk/includes/save-user-meta/save-user-meta.php","hostname":"plugins.trac.wordpress.org","tags":[]},{"url":"https://plugins.trac.wordpress.org/changeset/3456856/","label":"plugins.trac.wordpress.org/changeset/3456856/","hostname":"plugins.trac.wordpress.org","tags":[]},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/60f7df44-22f9-4a9e-a20c-4b8628674079","label":"www.wordfence.com/threat-intel/vulnerabilities/id/60f7df44-22f9-4a9e-a20c-4b8628674079","hostname":"www.wordfence.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-02-18T16:28:14.595Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-08T16:56:42.711Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":17,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T22:50:20.408Z","stale":false,"partial":false}}