CVE-2021-26925

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CVSS 3.1

5.4 medium

EPSS

1%p61

Published

Feb 9, 2021 (Feb 9, 2021)

Modified

Jun 17, 2026

Description

Roundcube before 1.4.11 allows XSS via crafted Cascading Style Sheets (CSS) token sequences during HTML email rendering.

Vendors: roundcube fedoraproject
Products: webmail, fedora
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (1.0%)

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