{"id":"CVE-2026-16282","aliases":["EUVD-2026-54731","GHSA-r9q4-xcm5-g5ww"],"status":"published","title":"Appointment Hour Booking \u003c 1.5.88 - Unauthenticated Booking Price Manipulation via tcost Parameter","description":"The Appointment Hour Booking  WordPress plugin before 1.5.88 does not validate a client-supplied booking price against the server-side configured service price, allowing unauthenticated users to submit an arbitrary final price (including zero or negative) that is stored as the authoritative booking price, corrupting booking and payment records.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00304,"percentile":0.23404,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2026-08-08T06:00:10Z","modified":"2026-08-26T16:31:16Z","products":[{"vendor":"codepeople","product":"appointment hour booking"},{"vendor":"unknown","product":"appointment hour booking"}],"references":[{"url":"https://wpscan.com/vulnerability/e87116af-d202-434b-9f47-e61e9c886240/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16282"},{"url":"https://wpscan.com/vulnerability/e87116af-d202-434b-9f47-e61e9c886240"},{"url":"https://github.com/advisories/GHSA-r9q4-xcm5-g5ww"}],"sources":{"cve":[{"id":"CVE-2026-16282","title":"Appointment Hour Booking \u003c 1.5.88 - Unauthenticated Booking Price Manipulation via tcost Parameter","description":"The Appointment Hour Booking  WordPress plugin before 1.5.88 does not validate a client-supplied booking price against the server-side configured service price, allowing unauthenticated users to submit an arbitrary final price (including zero or negative) that is stored as the authoritative booking price, corrupting booking and payment records.","status":"published","published":"2026-08-08T06:00:10.896Z","modified":"2026-08-11T19:34:02.056Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:20:11.24076Z"}],"euvd":[{"id":"EUVD-2026-54731","description":"The Appointment Hour Booking  WordPress plugin before 1.5.88 does not validate a client-supplied booking price against the server-side configured service price, allowing unauthenticated users to submit an arbitrary final price (including zero or negative) that is stored as the authoritative booking price, corrupting booking and payment records.","status":"published","published":"2026-08-08T06:00:10Z","modified":"2026-08-11T19:34:02Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:01:59.481615Z"}],"ghsa":[{"id":"GHSA-r9q4-xcm5-g5ww","title":"The Appointment Hour Booking  WordPress plugin before 1.5.88 does not validate a client-supplied...","description":"The Appointment Hour Booking  WordPress plugin before 1.5.88 does not validate a client-supplied booking price against the server-side configured service price, allowing unauthenticated users to submit an arbitrary final price (including zero or negative) that is stored as the authoritative booking price, corrupting booking and payment records.","status":"published","published":"2026-08-08T09:30:20Z","modified":"2026-08-11T21:33:33Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:10:22.198935Z"}],"nvd":[{"id":"CVE-2026-16282","description":"The Appointment Hour Booking  WordPress plugin before 1.5.88 does not validate a client-supplied booking price against the server-side configured service price, allowing unauthenticated users to submit an arbitrary final price (including zero or negative) that is stored as the authoritative booking price, corrupting booking and payment records.","status":"published","published":"2026-08-08T07:17:09.9Z","modified":"2026-08-26T16:31:16.753Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:12:35.743275Z"}]}}