{"id":"CVE-2021-24356","aliases":["EUVD-2021-11269","GHSA-x8rw-vx6w-9xw8"],"status":"published","title":"Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Arbitrary Plugin Activation","description":"In the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, a lack of capability checks and insufficient nonce check on the AJAX action, simple301redirects/admin/activate_plugin, made it possible for authenticated users to activate arbitrary plugins installed on vulnerable sites.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.02604,"percentile":0.85571,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-284","CWE-862"],"published":"2021-06-14T13:37:13Z","modified":"2026-06-17T03:39:53Z","exploits":[{"source":"pocgithub","id":"RandomRobbieBF/CVE-2021-24356","title":"RandomRobbieBF/CVE-2021-24356","date":"2023-08-09","url":"https://github.com/RandomRobbieBF/CVE-2021-24356"}],"products":[{"vendor":"unknown","product":"simple 301 redirects by betterlinks"},{"vendor":"wpdeveloper","product":"simple 301 redirects by betterlinks"},{"vendor":"wpdeveloper","product":"simple_301_redirects"}],"references":[{"url":"https://www.wordfence.com/blog/2021/05/severe-vulnerabilities-patched-in-simple-301-redirects-by-betterlinks-plugin/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://wpscan.com/vulnerability/be356530-5e00-4f27-8177-b80f3c1ae6e8","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24356"},{"url":"https://github.com/advisories/GHSA-x8rw-vx6w-9xw8"}],"sources":{"cve":[{"id":"CVE-2021-24356","title":"Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Arbitrary Plugin Activation","description":"In the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, a lack of capability checks and insufficient nonce check on the AJAX action, simple301redirects/admin/activate_plugin, made it possible for authenticated users to activate arbitrary plugins installed on vulnerable sites.","status":"published","published":"2021-06-14T13:37:13Z","modified":"2024-08-03T19:28:23.784Z","cwes":["CWE-862"],"updated_at":"2026-11-02T14:33:05.331617Z"}],"euvd":[{"id":"EUVD-2021-11269","description":"In the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, a lack of capability checks and insufficient nonce check on the AJAX action, simple301redirects/admin/activate_plugin, made it possible for authenticated users to activate arbitrary plugins installed on vulnerable sites.","status":"published","published":"2021-06-14T13:37:13Z","modified":"2024-08-03T19:28:23Z","updated_at":"2026-11-03T03:24:57.947294Z"}],"ghsa":[{"id":"GHSA-x8rw-vx6w-9xw8","title":"In the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, a lack of capability...","description":"In the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, a lack of capability checks and insufficient nonce check on the AJAX action, simple301redirects/admin/activate_plugin, made it possible for authenticated users to activate arbitrary plugins installed on vulnerable sites.","status":"published","published":"2022-05-24T19:05:17Z","modified":"2023-01-27T05:03:32Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-284","CWE-862"],"updated_at":"2026-11-02T14:42:16.196802Z"}],"nvd":[{"id":"CVE-2021-24356","description":"In the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, a lack of capability checks and insufficient nonce check on the AJAX action, simple301redirects/admin/activate_plugin, made it possible for authenticated users to activate arbitrary plugins installed on vulnerable sites.","status":"published","published":"2021-06-14T14:15:08.82Z","modified":"2026-06-17T03:39:53.323Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:06:54.892562Z"}]}}