CVE-2026-35539
Description
A flaw was found in Roundcube Webmail. This cross-site scripting (XSS) vulnerability arises from insufficient sanitization of HTML attachments when viewed in preview mode. A remote attacker could send a specially crafted HTML attachment, which, if previewed by a victim, could lead to the execution of malicious scripts in the victim's web browser. This could result in information disclosure or other unauthorized actions within the user's session.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
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