{"id":"CVE-2026-15239","aliases":["EUVD-2026-54401","GHSA-w6f5-3mw7-jjxq"],"status":"published","title":"Simple CAPTCHA with Cloudflare Turnstile \u003c 1.42.0 - Unauthenticated Turnstile Protection Bypass via Reusable Forminator Cache Key","description":"The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its Turnstile validation cache to the single-use challenge token in its Forminator integration, instead keying it to an attacker-controlled, reusable request value, allowing unauthenticated attackers to solve one challenge and then replay token-less form submissions for a short window, defeating the anti-abuse protection the plugin provides.","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":"2026-11-10","score":0.00158,"percentile":0.04988,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-345"],"published":"2026-08-07T07:25:36Z","modified":"2026-08-26T16:31:16Z","products":[{"vendor":"unknown","product":"simple captcha with cloudflare turnstile"}],"references":[{"url":"https://wpscan.com/vulnerability/28d3bda2-501c-4eeb-9184-c343367adbea/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15239"},{"url":"https://wpscan.com/vulnerability/28d3bda2-501c-4eeb-9184-c343367adbea"},{"url":"https://github.com/advisories/GHSA-w6f5-3mw7-jjxq"}],"sources":{"cve":[{"id":"CVE-2026-15239","title":"Simple CAPTCHA with Cloudflare Turnstile \u003c 1.42.0 - Unauthenticated Turnstile Protection Bypass via Reusable Forminator Cache Key","description":"The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its Turnstile validation cache to the single-use challenge token in its Forminator integration, instead keying it to an attacker-controlled, reusable request value, allowing unauthenticated attackers to solve one challenge and then replay token-less form submissions for a short window, defeating the anti-abuse protection the plugin provides.","status":"published","published":"2026-08-07T07:25:36.748Z","modified":"2026-08-07T15:19:13.952Z","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":"2026-11-02T13:47:39.876248Z"}],"euvd":[{"id":"EUVD-2026-54401","description":"The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its Turnstile validation cache to the single-use challenge token in its Forminator integration, instead keying it to an attacker-controlled, reusable request value, allowing unauthenticated attackers to solve one challenge and then replay token-less form submissions for a short window, defeating the anti-abuse protection the plugin provides.","status":"published","published":"2026-08-07T07:25:36Z","modified":"2026-08-07T15:19:13Z","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":"2026-11-02T18:02:07.294457Z"}],"ghsa":[{"id":"GHSA-w6f5-3mw7-jjxq","title":"The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its...","description":"The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its Turnstile validation cache to the single-use challenge token in its Forminator integration, instead keying it to an attacker-controlled, reusable request value, allowing unauthenticated attackers to solve one challenge and then replay token-less form submissions for a short window, defeating the anti-abuse protection the plugin provides.","status":"published","published":"2026-08-07T09:31:52Z","modified":"2026-08-07T18:32:49Z","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":"2026-11-02T15:10:12.306859Z"}],"nvd":[{"id":"CVE-2026-15239","description":"The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its Turnstile validation cache to the single-use challenge token in its Forminator integration, instead keying it to an attacker-controlled, reusable request value, allowing unauthenticated attackers to solve one challenge and then replay token-less form submissions for a short window, defeating the anti-abuse protection the plugin provides.","status":"published","published":"2026-08-07T08:16:45.897Z","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-345"],"updated_at":"2026-11-02T14:12:35.386166Z"}]}}