CVE-2022-0164: Coming soon and Maintenance mode < 3.6.7 - Subscriber+ Arbitrary Email Sending to Subscribed Users

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-02-21 · updated 2026-06-17
Weakness: CWE-352

Description

The Coming soon and Maintenance mode WordPress plugin before 3.5.3 does not have authorisation and CSRF checks in its coming_soon_send_mail AJAX action, allowing any authenticated users, with a role as low as subscriber to send arbitrary emails to all subscribed users

Affected products

Coming soon and Maintenance mode: before 3.5.3 — fixed in 3.5.3

How to fix

Upgrade to a fixed version: Coming soon and Maintenance mode 3.5.3. Check the vendor advisory for mitigations.

References

https://plugins.trac.wordpress.org/changeset/2655973
https://wpscan.com/vulnerability/942535f9-73bf-4467-872a-20075f03bc51
https://plugins.trac.wordpress.org/changeset/2655973
https://wpscan.com/vulnerability/942535f9-73bf-4467-872a-20075f03bc51

Get alerted when CVE-2022-0164 or the next vulnerability affects your stack