CVE-2026-74997

Published Aug 17, 2026

Last updated a month ago

Overview

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.
Source
cve@mitre.org
NVD status
Analyzed
Products
webmail

Risk scores

CVSS 3.1

Type
Secondary
Base score
8.8
Impact score
5.9
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

cve@mitre.org
CWE-78

Social media

Hype score
Not currently trending

Configurations