{"id":"CVE-2022-4120","aliases":["EUVD-2022-51487","GHSA-7x93-m29h-6j9q"],"status":"published","title":"Stop Spammers Security \u003c 2022.6 - Unauthenticated PHP Object Injection","description":"The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2022.6 passes base64 encoded user input to the unserialize() PHP function when CAPTCHA are used as second challenge, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.18121,"percentile":0.9722,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2022-12-26T12:28:19Z","modified":"2026-06-17T05:20:00Z","products":[{"vendor":"trumani","product":"stop_spammers"},{"vendor":"unknown","product":"stop spammers security | block spam users, comments, forms"}],"references":[{"url":"https://wpscan.com/vulnerability/e8bb79db-ef77-43be-b449-4c4b5310eedf","tags":["exploit","vdb-entry","technical-description","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-4120"},{"url":"https://github.com/advisories/GHSA-7x93-m29h-6j9q"}],"sources":{"cve":[{"id":"CVE-2022-4120","title":"Stop Spammers Security \u003c 2022.6 - Unauthenticated PHP Object Injection","description":"The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2022.6 passes base64 encoded user input to the unserialize() PHP function when CAPTCHA are used as second challenge, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain","status":"published","published":"2022-12-26T12:28:19.897Z","modified":"2025-04-14T13:24:34.26Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"updated_at":"2026-11-02T14:34:37.599536Z"}],"euvd":[{"id":"EUVD-2022-51487","description":"The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2022.6 passes base64 encoded user input to the unserialize() PHP function when CAPTCHA are used as second challenge, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain","status":"published","published":"2022-12-26T12:28:19Z","modified":"2025-04-14T13:24:34Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:52:33.975888Z"}],"ghsa":[{"id":"GHSA-7x93-m29h-6j9q","title":"The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2022.6...","description":"The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2022.6 passes base64 encoded user input to the unserialize() PHP function when CAPTCHA are used as second challenge, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain","status":"published","published":"2022-12-26T15:30:25Z","modified":"2023-01-28T05:01:39Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:43:36.071197Z"}],"nvd":[{"id":"CVE-2022-4120","description":"The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2022.6 passes base64 encoded user input to the unserialize() PHP function when CAPTCHA are used as second challenge, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain","status":"published","published":"2022-12-26T13:15:12.437Z","modified":"2026-06-17T05:20:00.49Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"updated_at":"2026-11-02T14:07:34.388163Z"}]}}