Roundcube

This is a security update to the LTS version 1.2. It fixes four recently reported security vulnerabilities:

• Cross-Site Scripting (XSS) via malicious HTML content
• CSRF attack can cause an authenticated user to be logged out
• Remote code execution via crafted config options
• Path traversal vulnerability allowing local file inclusion via crafted ‘plugins’ option

The latter two vulnerabilities are classified minor because they only affect Roundcube installations with public access to the Roundcube installer. That’s generally a high-risk situation and is expected to be rare or practically non-existent in productive Roundcube deployments. However, the fixes are done in core in order to also prevent from future and yet unknown attack vectors.

We strongly recommend to update all productive installations of Roundcube 1.2.x. if you cannot upgrade to a more recent version. Please do backup your data before updating!

CHANGELOG

• Fix missing message-htmlpart1 class breaking inline CSS (#6493)
• Security: Fix XSS issue in handling of CDATA in HTML messages
• Security: Fix remote code execution via crafted ‘im_convert_path’ or ‘im_identify_path’ settings
• Security: Fix local file inclusion (and code execution) via crafted ‘plugins’ option
• Security: Fix CSRF bypass that could be used to log out an authenticated user (#7302)