High severity · published Sep 10, 2026
CVE-2026-81783
WordPress MailMunch – Grow your Email List plugin <= 3.2.5 - Broken Authentication vulnerability
7.1
CVSS
0.4%
EPSS
No
On KEV
Description
Subscriber Broken Authentication in MailMunch – Grow your Email List <= 3.2.5 versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MG
MailMunch – Grow your Email List · mailmunch
through 3.2.5 · source: vendor
Affected product
MG
MailMunch – Grow your Email List
mailmunch
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-81783
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-81783
patchstack.com
https://patchstack.com/database/wordpress/plugin/mailmunch/vulnerability/wordpress-mailmunch-grow-your-email-list-plugin-3-2-5-broken-authentication-vulnerability?_s_id=cve