---
id: CVE-2026-84753
title: Unauthenticated PHP Object Injection in Mail Mint <= 1.31.0 versions.
summary: Unauthenticated PHP Object Injection in Mail Mint <= 1.31.0 versions.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-502
published: '2026-09-03'
updated: '2026-09-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84753'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/mail-mint/vulnerability/wordpress-mail-mint-plugin-1-31-0-php-object-injection-vulnerability?_s_id=cve
    label: audit@patchstack.com
tags:
  - nvd
  - exploit-available
epss: 0.00313
epssPercentile: 0.24476
ingestedAt: '2026-09-05T20:44:37.325Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/abraxas/CVE-2026-84753'
  checkedAt: '2026-09-24T07:53:21.104Z'
exploitAvailable: true
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.