CVSS 3.1 Score 5.4 of 10 (medium)


Published Oct 18, 2023
Updated: Dec 22, 2023


CVE-2023-5631 is a vulnerability affecting Roundcube versions before 1.4.15, 1.5.x before 1.5.5, and 1.6.x before 1.6.4. This vulnerability allows for stored cross-site scripting (XSS) attacks through a crafted SVG document in an HTML e-mail message, potentially allowing remote attackers to load arbitrary JavaScript code. Remediation for this vulnerability involves updating Roundcube to versions 1.4.15, 1.5.5, or 1.6.4 or later. The potential danger posed by this vulnerability is rated as medium severity with a base score of 5.4 according to the National Vulnerability Database (NVD).

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