{"id":"CVE-2021-24217","aliases":["EUVD-2021-11131","GHSA-w6px-4fhm-xxgc"],"status":"published","title":"Facebook for WordPress \u003c 3.0.0 - PHP Object Injection with POP Chain","description":"The run_action function of the Facebook for WordPress plugin before 3.0.0 deserializes user supplied data making it possible for PHP objects to be supplied creating an Object Injection vulnerability. There was also a useable magic method in the plugin that could be used to achieve remote code execution.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.0352,"percentile":0.89376,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2021-04-12T14:01:19Z","modified":"2026-06-17T03:39:37Z","products":[{"vendor":"facebook","product":"facebook"},{"vendor":"unknown","product":"facebook for wordpress"}],"references":[{"url":"https://wpscan.com/vulnerability/509f2754-a1a1-4142-9126-ae023a88533a","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.wordfence.com/blog/2021/03/two-vulnerabilities-patched-in-facebook-for-wordpress-plugin/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24217"},{"url":"https://github.com/advisories/GHSA-w6px-4fhm-xxgc"}],"sources":{"cve":[{"id":"CVE-2021-24217","title":"Facebook for WordPress \u003c 3.0.0 - PHP Object Injection with POP Chain","description":"The run_action function of the Facebook for WordPress plugin before 3.0.0 deserializes user supplied data making it possible for PHP objects to be supplied creating an Object Injection vulnerability. There was also a useable magic method in the plugin that could be used to achieve remote code execution.","status":"published","published":"2021-04-12T14:01:19Z","modified":"2024-08-03T19:21:18.798Z","cwes":["CWE-502"],"updated_at":"2026-11-02T14:33:05.331617Z"}],"euvd":[{"id":"EUVD-2021-11131","description":"The run_action function of the Facebook for WordPress plugin before 3.0.0 deserializes user supplied data making it possible for PHP objects to be supplied creating an Object Injection vulnerability. There was also a useable magic method in the plugin that could be used to achieve remote code execution.","status":"published","published":"2021-04-12T14:01:19Z","modified":"2024-08-03T19:21:18Z","updated_at":"2026-11-03T03:24:59.071017Z"}],"ghsa":[{"id":"GHSA-w6px-4fhm-xxgc","title":"The run_action function of the Facebook for WordPress plugin before 3.0.0 deserializes user...","description":"The run_action function of the Facebook for WordPress plugin before 3.0.0 deserializes user supplied data making it possible for PHP objects to be supplied creating an Object Injection vulnerability. There was also a useable magic method in the plugin that could be used to achieve remote code execution.","status":"published","published":"2022-05-24T17:47:07Z","modified":"2023-01-29T05:07:13Z","cwes":["CWE-502"],"updated_at":"2026-11-02T14:46:09.625645Z"}],"nvd":[{"id":"CVE-2021-24217","description":"The run_action function of the Facebook for WordPress plugin before 3.0.0 deserializes user supplied data making it possible for PHP objects to be supplied creating an Object Injection vulnerability. There was also a useable magic method in the plugin that could be used to achieve remote code execution.","status":"published","published":"2021-04-12T14:15:15.24Z","modified":"2026-06-17T03:39:37.117Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:06:51.610648Z"}]}}