{"cve":"CVE-2021-24809","nvd":{"published":"2021-11-01T09:15:09.637","modified":"2026-06-17T03:40:56.733","status":"Modified","description":"The BP Better Messages WordPress plugin before 1.9.9.41 does not check for CSRF in multiple of its AJAX actions: bp_better_messages_leave_chat, bp_better_messages_join_chat, bp_messages_leave_thread, bp_messages_mute_thread, bp_messages_unmute_thread, bp_better_messages_add_user_to_thread, bp_better_messages_exclude_user_from_thread. This could allow attackers to make logged in users do unwanted actions","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-352"],"references":["https://plugins.trac.wordpress.org/changeset/2605772/bp-better-messages/trunk/inc/ajax.php","https://wpscan.com/vulnerability/e186fef4-dca0-461f-b539-082c13a68d13","https://plugins.trac.wordpress.org/changeset/2605772/bp-better-messages/trunk/inc/ajax.php","https://wpscan.com/vulnerability/e186fef4-dca0-461f-b539-082c13a68d13"],"products":["wordplus:better_messages"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-24809","score":0.00726,"percentile":0.54137,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}