CVE-2025-32015 FreshRSS vulnerable to Cross-site Scripting by embedding <script> tag inside <iframe srcdoc>

FreshRSS is a self-hosted RSS feed aggregator. Prior to version 1.26.2, HTML is sanitized improperly inside the attribute, which leads to cross-site scripting XSS by loading an attacker's UserJS inside . In order to execute the attack, the attacker needs to control one of the victim's feeds and...

Mozilla: Remote content specified in an HTML document that was nested inside an iframe's srcdoc attribute was not blocked

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes the issue of when receiving an HTML email that contained an iframe element, which used a srcdoc attribute to define the internal HTML document, remote objects specified in the nested document for example, images or...