High severity · published Nov 1, 2021
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,…
8.8
CVSS
0.7%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BM
Better Messages · Wordplus
before 1.9.9.41 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-24809
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-24809
Patch
https://plugins.trac.wordpress.org/changeset/2605772/bp-better-messages/trunk/inc/ajax.php
Exploit
https://wpscan.com/vulnerability/e186fef4-dca0-461f-b539-082c13a68d13
More from Better Messages
8.8
CVE-2022-41609
Auth. (subscriber+) Server-Side Request Forgery (SSRF) vulnerability in Better Messages plugin 1.9.10.68 on WordPress
8.8
CVE-2022-36389
Cross-Site Request Forgery (CSRF) vulnerability in WordPlus Better Messages plugin <= 1.9.9.148 at WordPress
7.5
CVE-2024-13611
Better Messages – Live Chat for WordPress, BuddyPress, PeepSo, Ultimate Member, BuddyBoss <= 2.6.9 - Unauthenticated Sensitive Information Exposure Through Unprotected Directory
6.5
CVE-2024-13697
Better Messages – Live Chat for WordPress, BuddyPress, PeepSo, Ultimate Member, BuddyBoss <= 2.7.4 - Unauthenticated Limited Server-Side Request Forgery in nice_links
6.5
CVE-2022-40216
Auth. (subscriber+) Messaging Block Bypass vulnerability in Better Messages plugin <= 1.9.10.69 on WordPress