CVE-2026-81783 WordPress MailMunch – Grow your Email List plugin <= 3.2.5 - Broken Authentication vulnerability
Attackers can bypass authentication to gain subscriber privileges in the MailMunch WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-81783?
CVE-2026-81783 is a high-severity authentication bypass vulnerability in MailMunch – Grow your Email List, published on 10 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Subscriber Broken Authentication in MailMunch – Grow your Email List <= 3.2.5 versions.
Weakness: CWE-288
Which versions are affected by CVE-2026-81783?
How do I fix CVE-2026-81783?
No fix has been published for CVE-2026-81783 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-81783 being exploited?
There is no known exploitation of CVE-2026-81783 in the wild and no public exploit code.
Sources
Also known as GHSA-xf8c-j588-6gmg.