Vulnerability 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.
CVSS Score
8.1
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Related Weaknesses (CWE)
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
FAQ
What is CVE-2026-48842?
CVE-2026-48842 is a vulnerability with a CVSS score of 8.1 (HIGH). 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.
How severe is CVE-2026-48842?
CVE-2026-48842 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-48842?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.