CSRF in Wordplus Better Messages

CVE-2021-24809

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

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.007 (49.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24809?
CVE-2021-24809 is a high-severity vulnerability in Wordplus Better Messages, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-11-01.
How severe is CVE-2021-24809?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-24809 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.