CVE-2026-12918 Mail Mint <= 1.24.1 - Authenticated (Administrator+) SQL Injection via 'recipients' Parameter
Authenticated administrators can exploit a second-order SQL injection in the Mail Mint plugin to extract sensitive database information.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-12918?
CVE-2026-12918 is a medium-severity SQL injection vulnerability in getwpfunnels Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails, published on 10 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails plugin for WordPress is vulnerable to generic SQL Injection via the 'recipients' parameter in all versions up to, and including, 1.24.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This is a second-order SQL injection: the malicious payload is first stored unsanitized via a POST request to /mrm/v1/campaigns/ (bypassing filter_recipients() validation because an int-cast of a string like '1) OR ...' evaluates to a real numeric ID), and is then triggered by a subsequent GET request to /mrm/v1/campaigns/{id} that deserializes the recipients and passes the raw id string through array_column() into the vulnerable query.
Weakness: CWE-89
Which versions are affected by CVE-2026-12918?
How do I fix CVE-2026-12918?
No fix has been published for CVE-2026-12918 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-12918 being exploited?
There is no known exploitation of CVE-2026-12918 in the wild and no public exploit code.
Sources
Also known as GHSA-87jw-g834-7wpg.