The Canadian Centre for Cyber Security has warned that a now-patched Roundcube Webmail vulnerability is being actively exploited in the wild.

The vulnerability in question is CVE-2026-48842 (CVSS score: 8.1), a pre-authentication SQL injection in the virtuser_query plugin of Roundcube Webmail versions 1.6.x before 1.6.16 and 1.7.x before 1.7.1.

The issue stems from a preg_replace() backslash



Source: TheHackerNews
Source Link: https://thehackernews.com/2026/09/roundcube-pre-auth-sql-injection-flaw.html