PT-2026-76638 · Roundcube+3 · Webmail+2
CVE-2026-74997
·
Published
2026-08-17
·
Updated
2026-08-17
CVSS v3.1
8.8
High
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Roundcube Webmail versions prior to 1.6.18
Roundcube Webmail versions 1.7.x prior to 1.7.3
Description
The
cmd learn driver of the markasjunk plugin allows remote code execution through the use of crafted placeholder replacement values. This issue specifically impacts instances where the markasjunk plugin is active and configured to use the cmd learn driver.Recommendations
Update to version 1.6.18 or later.
Update to version 1.7.3 or later.
As a temporary mitigation, disable the markasjunk plugin or stop using the
cmd learn driver.Exploit
Fix
OS Command Injection
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Webmail
Roundcube
Roundcubemail