{"id":"CVE-2021-24354","aliases":["EUVD-2021-11267","GHSA-w57v-wqq6-mfw3"],"status":"published","title":"Simple 301 Redirects by BetterLinks - 2.0.0-2.0.3 - Arbitrary Plugin Installation","description":"A lack of capability checks and insufficient nonce check on the AJAX action in the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, made it possible for authenticated users to install arbitrary plugins 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":"2026-11-12","score":0.0148,"percentile":0.74281,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269","CWE-862"],"published":"2021-06-14T13:37:13Z","modified":"2026-06-17T03:39:53Z","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/8638b36c-6641-491f-b9df-5db3645e4668","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24354"},{"url":"https://github.com/advisories/GHSA-w57v-wqq6-mfw3"}],"sources":{"cve":[{"id":"CVE-2021-24354","title":"Simple 301 Redirects by BetterLinks - 2.0.0-2.0.3 - Arbitrary Plugin Installation","description":"A lack of capability checks and insufficient nonce check on the AJAX action in the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, made it possible for authenticated users to install arbitrary plugins on vulnerable sites.","status":"published","published":"2021-06-14T13:37:13Z","modified":"2024-08-03T19:28:23.447Z","cwes":["CWE-862"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11267","description":"A lack of capability checks and insufficient nonce check on the AJAX action in the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, made it possible for authenticated users to install arbitrary plugins 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-w57v-wqq6-mfw3","title":"A lack of capability checks and insufficient nonce check on the AJAX action in the Simple 301...","description":"A lack of capability checks and insufficient nonce check on the AJAX action in the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, made it possible for authenticated users to install arbitrary plugins on vulnerable sites.","status":"published","published":"2022-05-24T19:05:17Z","modified":"2023-01-29T05:07:00Z","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-269","CWE-862"],"updated_at":"2026-11-02T14:46:08.233339Z"}],"nvd":[{"id":"CVE-2021-24354","description":"A lack of capability checks and insufficient nonce check on the AJAX action in the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, made it possible for authenticated users to install arbitrary plugins on vulnerable sites.","status":"published","published":"2021-06-14T14:15:08.703Z","modified":"2026-06-17T03:39:53.113Z","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"}]}}