{"id":"CVE-2021-24633","aliases":["EUVD-2021-11545","GHSA-3qwq-8wfq-2pfc"],"status":"published","title":"Countdown Block \u003c 1.1.2 - Missing Authorisation in AJAX action","description":"The Countdown Block WordPress plugin before 1.1.2 does not have authorisation in the eb_write_block_css AJAX action, which allows any authenticated user, such as Subscriber, to modify post contents displayed to users.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00671,"percentile":0.52525,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284","CWE-862"],"published":"2021-09-27T15:25:26Z","modified":"2026-06-17T03:40:21Z","products":[{"vendor":"unknown","product":"countdown block"},{"vendor":"wpdeveloper","product":"countdown_block"}],"references":[{"url":"https://wpscan.com/vulnerability/431901eb-0f95-4033-b943-324e6d3844a5","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24633"},{"url":"https://github.com/advisories/GHSA-3qwq-8wfq-2pfc"}],"sources":{"cve":[{"id":"CVE-2021-24633","title":"Countdown Block \u003c 1.1.2 - Missing Authorisation in AJAX action","description":"The Countdown Block WordPress plugin before 1.1.2 does not have authorisation in the eb_write_block_css AJAX action, which allows any authenticated user, such as Subscriber, to modify post contents displayed to users.","status":"published","published":"2021-09-27T15:25:26Z","modified":"2024-08-03T19:35:20.225Z","cwes":["CWE-862"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11545","description":"The Countdown Block WordPress plugin before 1.1.2 does not have authorisation in the eb_write_block_css AJAX action, which allows any authenticated user, such as Subscriber, to modify post contents displayed to users.","status":"published","published":"2021-09-27T15:25:26Z","modified":"2024-08-03T19:35:20Z","updated_at":"2026-11-03T03:24:56.857735Z"}],"ghsa":[{"id":"GHSA-3qwq-8wfq-2pfc","title":"The Countdown Block WordPress plugin before 1.1.2 does not have authorisation in the...","description":"The Countdown Block WordPress plugin before 1.1.2 does not have authorisation in the eb_write_block_css AJAX action, which allows any authenticated user, such as Subscriber, to modify post contents displayed to users.","status":"published","published":"2022-05-24T19:15:49Z","modified":"2023-01-30T05:02:29Z","cwes":["CWE-284","CWE-862"],"updated_at":"2026-11-02T14:46:38.945282Z"}],"nvd":[{"id":"CVE-2021-24633","description":"The Countdown Block WordPress plugin before 1.1.2 does not have authorisation in the eb_write_block_css AJAX action, which allows any authenticated user, such as Subscriber, to modify post contents displayed to users.","status":"published","published":"2021-09-27T16:15:08.743Z","modified":"2026-06-17T03:40:21.813Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:06:58.933037Z"}]}}