CVE-2026-84753: Mail Mint PHP object injection

CVE-2026-84753 · Severity: critical · CVSS 9.8 · Published 2026-09-03

Mail Mint is a WordPress plugin used for email management and marketing campaigns. An unauthenticated attacker can inject malicious PHP objects into the plugin to execute arbitrary code on the website server, potentially compromising customer data, stealing credentials, or deploying ransomware with no authentication required.

Technologies: WPFunnels Team Mail Mint. Vendors: WPFunnels Team.

Quick answers

Is CVE-2026-84753 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-84753 being exploited in the wild.
How severe is CVE-2026-84753?
Critical severity, with a CVSS score of 9.8, published 3 September 2026.
Which products and versions are affected?
WPFunnels Team Mail Mint <= 1.31.0.
Is there a fix for CVE-2026-84753?
A patch was published on 2026-09-03: Patch version 1.31.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-84753 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-84753?
Check whether you run WPFunnels Team Mail Mint at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This vulnerability is a PHP Object Injection flaw in Mail Mint plugin versions up to 1.31.0. The vulnerable code allows unauthenticated attackers to manipulate how the application deserializes user-supplied data, enabling arbitrary code execution on the server. The attack requires only network access (no authentication or user interaction needed) and can be exploited remotely. Successful exploitation allows attackers to achieve remote code execution with server privileges. The vulnerability was patched in version 1.31.1.

Affected products

  • WPFunnels Team Mail Mint <= 1.31.0

Timeline

  • 2026-09-03: disclosed
  • 2026-09-03: patched: Patch version 1.31.1 released
  • 2026-04-24: other: Vulnerability reported to developer

References

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