USN-8482-1: Roundcube Webmail vulnerability

Publication date

30 June 2026

Overview

Roundcube Webmail could be made to run programs as your login if it opened a malicious website.

Releases


Packages

  • roundcube - skinnable AJAX based webmail solution for IMAP servers - metapack

Details

It was discovered that Roundcube Webmail was prone to a Cross-Site-Scripting
(XSS) vulnerability via the animate tag in an SVG document. An attacker
could use this issue to execute arbitrary web script in the context of an
affected user's session.

It was discovered that Roundcube Webmail was prone to a Cross-Site-Scripting
(XSS) vulnerability via the animate tag in an SVG document. An attacker
could use this issue to execute arbitrary web script in the context of an
affected user's session.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
26.04 LTS resolute roundcube –  1.6.11+dfsg-1ubuntu0.26.04.1~esm1  
roundcube-core –  1.6.11+dfsg-1ubuntu0.26.04.1~esm1  

Reduce your security exposure

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