CVE-2026-57813 WordPress MailOptin plugin <= 1.2.77.3 - Privilege Escalation vulnerability
An attacker can escalate privileges in the MailOptin WordPress plugin due to incorrect privilege assignment, requiring an upgrade to fix.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-57813?
CVE-2026-57813 is a critical vulnerability in properfraction MailOptin, published on 13 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Incorrect Privilege Assignment vulnerability in properfraction MailOptin mailoptin allows Privilege Escalation.This issue affects MailOptin: from n/a through <= 1.2.77.3.
Weakness: CWE-266
Which versions are affected by CVE-2026-57813?
How do I fix CVE-2026-57813?
No fix has been published for CVE-2026-57813 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-57813 being exploited?
There is no known exploitation of CVE-2026-57813 in the wild and no public exploit code.
Sources
Also known as GHSA-f4rh-8hh9-hc4p.