CVE-2026-49864

wetty provides terminal access in browser over http/https. Prior to version 3.0.4, the wetty client decodes a base64 filename from the file-download escape sequence and interpolates it raw into a Toastify HTML string escapeMarkup: false. Any output the victim renders - a cat'd file, a tailed log,...

wetty vulnerable to DOM XSS via file-download filename

Summary The wetty client decodes a base64 filename from the file-download escape sequence and interpolates it raw into a Toastify HTML string escapeMarkup: false. Any output the victim renders - a cat'd file, a tailed log, an SSH MOTD, a curl response - that contains \x1b5i...:...\x1b4i runs scri...