Is CVE-2026-74997 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-74997?

CVE-2026-74997 has a CVSS v3 severity of HIGH (8.8).

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CVE-2026-74997

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.