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8.8 High

CVE-2026-74997 In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the cmd_learn driver of the markasjunk plugin is subject to…

Description

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the cmd_learn driver of the markasjunk plugin is subject to remote code execution via crafted placeholder replacement values. This issue only affects Roundcube instances using the markasjunk plugin with its cmd_learn driver.

Affected products and versions

Product Affected versions Fixed in
Webmail 1.7 1.7.0 → < 1.7.3 1.7.3
Webmail 1.6 1.6.0 → < 1.6.18 1.6.18

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