CVE-2026-48842: high-severity vulnerability in Roundcube Webmail
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
63Vexday Risk Score
Prioritize patching. It exploitation observed by VulnCheck and has a public proof of concept.
ssvc Actcvss 8.1epss 1.7%
from disclosure to weapon123 days
Published on NVDMay 25
1st PoC+123d
VulnCheck+119d
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Roundcube · Webmailpublic PoCs found — 2
vulncheckvulncheck.com/xdb/a28b34f27021unverifiedvulncheckvulncheck.com/xdb/861f1c6e73b0unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Roundcube Webmail
In the same product, most dangerous first.
References
https://github.com/roundcube/roundcubemail/commit/3406183a9976e36f992d3468f37d0e2346526ee9https://github.com/roundcube/roundcubemail/commit/87124cc7136a48b5fa9d2b40dfead6e9dcaeaf4bhttps://github.com/roundcube/roundcubemail/releases/tag/1.6.16https://github.com/roundcube/roundcubemail/releases/tag/1.7.1https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1http://www.openwall.com/lists/oss-security/2026/06/03/17