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CVE-2025-4203: wpForo Forum <= 2.4.8 - Unauthenticated SQL Injection via get_members Function

• Severity: high (CVSS 7.5 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: 2025-10-25 · updated 2026-10-08
• Weakness: CWE-89

Description

The wpForo Forum plugin for WordPress is vulnerable to error‐based or time-based SQL Injection via the get_members() function in all versions up to, and including, 2.4.8 due to missing integer validation on the 'offset' and 'row_count' parameters. The function blindly interpolates 'row_count' into a 'LIMIT offset,row_count' clause using esc_sql() rather than enforcing numeric values. MySQL 5.x’s grammar allows a 'PROCEDURE ANALYSE' clause immediately after a LIMIT clause. Unauthenticated attackers controlling 'row_count' can append a stored‐procedure call, enabling error‐based or time‐based blind SQL injection that can be used to extract sensitive information from the database.

Affected products

• tomdever wpForo Forum: through 2.4.8

References

• https://plugins.trac.wordpress.org/browser/wpforo/tags/2.4.5/classes/Members.php#L1557
• https://plugins.trac.wordpress.org/browser/wpforo/tags/2.4.9/classes/Members.php#L1557
• https://wordpress.org/plugins/wpforo/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/bc406e8a-c4eb-45c3-a53c-37644e0dabfa?source=cve

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