SVG XSS Attack Vectors
SVG (Scalable Vector Graphics) files can be weaponized to bypass web application security filters and execute malicious code. In the context of CVE-2025-68461, attackers embed JavaScript payloads within the values attribute of SVG animate tags, using keyTimes manipulation to force immediate execution. This technique bypasses traditional blacklist-based HTML sanitizers because the malicious code hides in what appears to be legitimate animation data. SVG-based XSS attacks are increasing in sophistication, targeting webmail clients, content management systems, and file-sharing platforms that allow vector graphics uploads or display.
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Roundcube CVE-2025-68461: SVG XSS Vulnerability Enables Silent Email Account Takeover Through Malicious Animate Tags
Roundcube Webmail contains a Cross-Site Scripting vulnerability (CVE-2025-68461, CVSS 7.2) that enables attackers to hijack email accounts by sending malicious SVG files. The flaw exploits improper sanitization of SVG animate…
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