Overview
What is CVE-2026-48842?
Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1 has Pre-authentication SQL injection in the virtuser_query plugin via a preg_replace() backslash escape bypass.
Vulnerability intelligence
The Hacker News reports exploitation in the wild. This is separate from CISA KEV membership.
Public exploit: Not collected. Review the linked vendor advisory and apply the mitigation or fixed release for your affected product.
Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1 has Pre-authentication SQL injection in the virtuser_query plugin via a preg_replace() backslash escape bypass.