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high advisory

Wetty Client DOM XSS via Base64 Filename in File Download Escape Sequence (CVE-2026-49864)

A high-severity DOM XSS vulnerability (CVE-2026-49864) in the wetty SSH client allows an attacker to achieve keystroke injection and command execution on the victim's SSH session by embedding a crafted base64-encoded filename within a terminal file-download escape sequence, which is then unescaped and rendered as raw HTML.

wetty xss dom-xss vulnerability rce ssh-client client-side
1r 4t