CVE-2026-19800: SQL Injection (CVSS 4.9)

Description

The Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails plugin for WordPress is vulnerable to SQL Injection via the 'status' parameter in all versions up to, and including, 1.31.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. The $wpdb->prepare() call does not protect against this injection because the attacker-controlled $contact_filter_query fragment is concatenated into the SQL format string before prepare() executes — prepare() only processes %s/%d placeholders and cannot sanitize content already embedded in the format string. REST API JSON bodies are parsed from php://input and bypass WordPress's wp_magic_quotes(), meaning double-quote characters in status array values reach the SQL sink unescaped. 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. The required 'mint_read_contacts' capability is a plugin-specific capability not assigned to any default WordPress role; it must be explicitly granted by an administrator, making this effectively an Administrator+ vulnerability.

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CVSS v3.1 Score

4.9

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0032

Probability of exploitation

0.25%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-89 SQL Injection

References

Other References

https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.24.2/app/API/Controllers/Admin/ContactController.php#L775 https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.24.2/app/API/Routes/Admin/ContactRoute.php#L415 https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.24.2/app/Database/models/ContactModel.php#L693 https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.30.1/app/API/Controllers/Admin/ContactController.php#L775 https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.30.1/app/API/Routes/Admin/ContactRoute.php#L415 https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.30.1/app/Database/models/ContactModel.php#L693 https://plugins.trac.wordpress.org/changeset?reponame=&old=3675453%40mail-mint&new=3675453%40mail-mint https://www.wordfence.com/threat-intel/vulnerabilities/id/af18f38a-f3cb-46ae-9409-80e35c34df83?source=cve

Frequently Asked Questions

What is CVE-2026-19800? +

The Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails plugin for WordPress is vulnerable to SQL Injection via the 'status' parameter in all versions up to, and including, 1.31.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. The $wpdb->prepare() call does not protect against this injection because the attacker-controlled $contact_filter_query fragment is concatenated into the SQL format string before prepare() executes — prepare() only processes %s/%d placeholders and cannot sanitize content already embedded in the format string. REST API JSON bodies are parsed from php://input and bypass WordPress's wp_magic_quotes(), meaning double-quote characters in status array values reach the SQL sink unescaped. 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. The required 'mint_read_contacts' capability is a plugin-specific capability not assigned to any default WordPress role; it must be explicitly granted by an administrator, making this effectively an Administrator+ vulnerability. It has a CVSS v3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2026-19800? +

CVE-2026-19800 has a CVSS v3.1 score of 4.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0032, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-19800? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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