What is CVE-2026-48842?

CVE-2026-48842 is a high-severity vulnerability in Roundcube Webmail, classified under SQL Injection. CVSS score: 8.1/10. Published 2026-05-25.

How severe is CVE-2026-48842?

High severity. CVSS v3 base score is 8.1 out of 10.

SQL Injection in Roundcube Webmail

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 class: SQL Injection

EPSS: 0.001 (31.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Roundcube Webmail — versions 1.6.0, 1.7.0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

cve@mitre.org
cve@mitre.org
cve@mitre.org
cve@mitre.org
cve@mitre.org
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-48842?: CVE-2026-48842 is a high-severity vulnerability in Roundcube Webmail, classified under SQL Injection. CVSS score: 8.1/10. Published 2026-05-25.
How severe is CVE-2026-48842?: High severity. CVSS v3 base score is 8.1 out of 10.