CVE-2026-26079

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CVSS 3.1

4.7 medium

EPSS

<1%p22

Published

Feb 11, 2026 (Feb 11, 2026)

Modified

Jun 17, 2026

Description

Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13 allows Cascading Style Sheets (CSS) injection, e.g., because comments are mishandled.

Weakness: CWE-829
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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