{"id":"CVE-2026-83533","aliases":["EUVD-2026-70046","GHSA-rr9j-x6q5-q5pf"],"status":"published","title":"WP Express Checkout \u003c 2.4.9 - Unauthenticated Payment Bypass via wpec_process_payment","description":"The WP Express Checkout WordPress plugin before 2.4.9 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a completed order without paying.","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":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00163,"percentile":0.05532,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-345"],"published":"2026-09-02T14:16:54Z","modified":"2026-09-03T17:50:37Z","products":[{"vendor":"unknown","product":"wp express checkout"}],"references":[{"url":"https://wpscan.com/vulnerability/8ffb76d6-fda5-4819-ab07-d8c086169110/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83533"},{"url":"https://wpscan.com/vulnerability/8ffb76d6-fda5-4819-ab07-d8c086169110"},{"url":"https://github.com/advisories/GHSA-rr9j-x6q5-q5pf"}],"sources":{"cve":[{"id":"CVE-2026-83533","title":"WP Express Checkout \u003c 2.4.9 - Unauthenticated Payment Bypass via wpec_process_payment","description":"The WP Express Checkout WordPress plugin before 2.4.9 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a completed order without paying.","status":"published","published":"2026-09-02T14:16:54.133Z","modified":"2026-09-02T14:57:36.844Z","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":"cna"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T13:45:14.072357Z"}],"euvd":[{"id":"EUVD-2026-70046","description":"The WP Express Checkout WordPress plugin before 2.4.9 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a completed order without paying.","status":"published","published":"2026-09-02T14:16:54Z","modified":"2026-09-02T14:57:36Z","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":"2026-11-02T18:01:15.49101Z"}],"ghsa":[{"id":"GHSA-rr9j-x6q5-q5pf","title":"The WP Express Checkout WordPress plugin before 2.4.9 does not verify server-side that a payment...","description":"The WP Express Checkout WordPress plugin before 2.4.9 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a completed order without paying.","status":"published","published":"2026-09-02T15:34:51Z","modified":"2026-09-02T15:34:57Z","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-345"],"updated_at":"2026-11-02T15:11:17.291346Z"}],"nvd":[{"id":"CVE-2026-83533","description":"The WP Express Checkout WordPress plugin before 2.4.9 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a completed order without paying.","status":"published","published":"2026-09-02T15:17:45.013Z","modified":"2026-09-03T17:50:37.69Z","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-345"],"updated_at":"2026-11-02T14:12:43.399612Z"}]}}