Name: CVE-2020-35730: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2020-12-28T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2020-35730, CWE-79, Exploited in the Wild, CISA KEV Exploit, CVSS 6.1, EPSS 0.3292, CISA KEV

An XSS issue was discovered in Roundcube Webmail before 1.2.13, 1.3.x before 1.3.16, and 1.4.x before 1.4.10. The attacker can send a plain text e-mail message, with JavaScript in a link reference element that is mishandled by linkref_addindex in rcube_string_replacer.php.

CVSS Details

CVSS 3.1 Base Score: 6.1
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Dec 28, 2020
Debian	—	Upgrade roundcube	Jan 4, 2021	Dec 28, 2020
Suse	—	Upgrade roundcubemail	Jun 29, 2021	Dec 28, 2020
Ubuntu	—	Upgrade roundcube (Ubuntu Pro)Upgrade roundcube-core (Ubuntu Pro)	Mar 22, 2023	Dec 28, 2020

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