Incorrect authorization in Roundcube Webmail - #VU156149
Published: October 19, 2026
Vulnerability identifier: #VU156149
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to invoke actions that an administrator has disabled.
The vulnerability exists due to incomplete authorization enforcement in action dispatch when processing deprecated action aliases. A remote user can request a disabled action through a deprecated alias to bypass the disabled_actions setting and execute the restricted action.
Affected software
Roundcube Webmail
Remediation
Install security update from vendor's website.
Roundcube Webmail - addressed in versions 1.6.20, 1.7.5