What’s Vulnerable › Vulnerabilities

CVE-2024-13844: Post SMTP <= 3.1.2 - Authenticated (Administrator+) SQL Injection via columns Parameter

• Severity: medium (CVSS 4.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-03-08 · updated 2026-06-17
• Weakness: CWE-89

Description

The Post SMTP plugin for WordPress is vulnerable to generic SQL Injection via the ‘columns’ parameter in all versions up to, and including, 3.1.2 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.

Affected products

• saadiqbal Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App: before 3.1.3 — fixed in 3.1.3

How to fix

Upgrade to a fixed version: saadiqbal Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App 3.1.3. Check the vendor advisory for mitigations.

References

• https://gist.github.com/nhienit2010/d4692062f54b89e16aa068a0ef142cf6#file-postmanemailquerylog-php-L314
• https://plugins.trac.wordpress.org/changeset/3249371/
• https://wordpress.org/plugins/post-smtp/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/0540f70d-009a-4776-8717-f096e30a11d3?source=cve

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