CVE-2020-15562: Debian Linux

Medium severity, CVSS 6.1. EPSS: 2.1% chance of exploitation in the next 30 days.

An issue was discovered in Roundcube Webmail before 1.2.11, 1.3.x before 1.3.14, and 1.4.x before 1.4.7. It allows XSS via a crafted HTML e-mail message, as demonstrated by a JavaScript payload in the xmlns (aka XML namespace) attribute of a HEAD element when an SVG element exists.

Affected products

• Debian Debian Linux: version 10.0 only
• Roundcube Webmail: before 1.2.11 (fixed in 1.2.11); from 1.3.0, before 1.3.14 (fixed in 1.3.14); from 1.4.0, before 1.4.7 (fixed in 1.4.7)

Published 2020-07-06. Last modified 2026-06-17.