CVE-2026-84753 WordPress Mail Mint plugin <= 1.31.0 - PHP Object Injection vulnerability

Q: What is CVE-2026-84753?

CVE-2026-84753 is a critical unsafe deserialization vulnerability in WPFunnels Mail Mint, published on 3 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Q: Is CVE-2026-84753 being exploited?

There is no known exploitation of CVE-2026-84753 in the wild and no public exploit code.

Q: How do I fix CVE-2026-84753?

No fix has been published for CVE-2026-84753 yet. Limit exposure of the affected software until one is available.

Critical 9.8 Published 3 Sep 2026 Updated 5 Sep 2026

Unauthenticated attackers can exploit PHP object injection in the Mail Mint plugin to potentially execute arbitrary code.

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-2026-84753?

CVE-2026-84753 is a critical unsafe deserialization vulnerability in WPFunnels Mail Mint, published on 3 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unauthenticated PHP Object Injection in Mail Mint <= 1.31.0 versions.

Weakness: CWE-502

Which versions are affected by CVE-2026-84753?

How do I fix CVE-2026-84753?

No fix has been published for CVE-2026-84753 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2026-84753 being exploited?

There is no known exploitation of CVE-2026-84753 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-28vg-wv39-3g8h.