CVE-2026-48842

Description

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.

Affected Platforms

Weakness Type

CWE-89

References

• https://github.com/roundcube/roundcubemail/commit/3406183a9976e36f992d3468f37d0e…
• https://github.com/roundcube/roundcubemail/commit/87124cc7136a48b5fa9d2b40dfead6…
• https://github.com/roundcube/roundcubemail/releases/tag/1.6.16
• https://github.com/roundcube/roundcubemail/releases/tag/1.7.1
• https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1
• http://www.openwall.com/lists/oss-security/2026/06/03/17