Weakness
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the LDAP search filter was subject to injection via unescaped %u/%fu/%d substitution, which may lead to information disclosure or privilege escalation.
Affected products
- roundcube webmail
References
- https://github.com/roundcube/roundcubemail/commit/0893e192adf803c7a5a89fafc80278257e1bcf65
- https://github.com/roundcube/roundcubemail/commit/e6cc1e121effeaec6d916feb4e019d2828924540
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.18
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.3
- https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3
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