CVE-2026-93899
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk17th percentile - higher than 17% of all known CVEs
Summary
The Better Messages plugin for WordPress (versions up to and including 3.0.4) is vulnerable to generic SQL Injection via the 'group_id' Message Meta Parameter. Due to insufficient escaping of user-supplied input, an authenticated attacker with subscriber-level access can append additional SQL queries to existing ones, enabling extraction of sensitive information from the database.
Risk Assessment
A low-privileged attacker can read sensitive data from the WordPress database, including user data, passwords, or other confidential information, potentially leading to a full security breach.
Recommendation
Update the Better Messages plugin to a version newer than 3.0.4 as soon as a fix is available, and in the meantime consider disabling or restricting the group chat feature.
Other vulnerabilities in Better Messages WordPress Plugin
Original NVD description (English source)
The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to generic SQL Injection via 'group_id' Message Meta Parameter in all versions up to, and including, 3.0.4 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 subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Exploitation requires the BuddyBoss Platform plugin to be installed with its Social Groups component disabled, a state that persists on any site that has previously toggled the Groups component off since BuddyBoss does not drop the wp_bp_groups table upon deactivation.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS