CVE-2025-31136 FreshRSS vulnerable to Cross-site Scripting by <iframe>'ing a vulnerable same-origin page in a feed entry

FreshRSS is a self-hosted RSS feed aggregator. Prior to version 1.26.2, it's possible to run arbitrary JavaScript on the feeds page. This occurs by combining a cross-site scripting XSS issue that occurs in f.php when SVG favicons are downloaded from an attacker-controlled feed containing tags...