Mail Mint <= 1.31.0 — Unauthenticated PHP Object Injection in Arbitrary Form Fields
CVE-2026-10196Published · Updated Action summary
Affected: ≤1.31.0Update to 1.31.1 or newer
All remediation steps- Severity
- Critical9.8
- CVSS
- 9.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-502 PHP Object Injection
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Mail Mint – Email Marketing, Automation & WooCommerce Emails with AI Assistance mail-mint
- Affected≤ 1.31.0
- Patched in1.31.1
Update to 1.31.1 or newer.
You are affected if you run ≤ 1.31.0. Version 1.31.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Mail Mint – Email Marketing, Automation & WooCommerce Emails with AI Assistance.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 1.31.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Mail Mint – Email Marketing, Automation & WooCommerce Emails with AI Assistance to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to maru.
The Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.31.0 via deserialization of untrusted input in the 'handle_form_submission' function. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to execute code on the server. The vulnerability was partially patched in version 1.23.1.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Mail Mint – Email Marketing, Automation & WooCommerce Emails with AI Assistance
All 16| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.5 | Authenticated (Custom+) SQL Injection via 'filters' Parameter ≤1.31.4Update to 1.31.5 | CVE-2026-111106 | |
| Medium4.9 | Authenticated (Custom+) SQL Injection via 'status' Parameter ≤1.31.0Update to 1.31.1 | CVE-2026-19800 | |
| High8.1 | Unauthenticated PHP Object Injection ≤1.31.0Update to 1.31.1 | CVE-2026-84753 | |
| Medium5.3 | Missing Authorization ≤1.31.0Update to 1.31.1 | CVE-2026-84755 | |
| Medium4.9 | Authenticated (Administrator+) SQL Injection via 'recipients' Parameter ≤1.24.1Update to 1.24.2 | CVE-2026-12918 |
- Medium6.5Authenticated (Custom+) SQL Injection via 'filters' Parameter
≤1.31.4Update to 1.31.5
- Medium4.9Authenticated (Custom+) SQL Injection via 'status' Parameter
≤1.31.0Update to 1.31.1
- High8.1Unauthenticated PHP Object Injection
≤1.31.0Update to 1.31.1
- Medium5.3Missing Authorization
≤1.31.0Update to 1.31.1
- Medium4.9Authenticated (Administrator+) SQL Injection via 'recipients' Parameter
≤1.24.1Update to 1.24.2
Same weakness (PHP Object Injection)
All PHP Object Injection| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.