{"api_version":"1","generated_at":"2026-08-14T16:52:11+00:00","cve":"CVE-2026-49864","urls":{"html":"https://cve.report/CVE-2026-49864","api":"https://cve.report/api/cve/CVE-2026-49864.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-49864","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-49864"},"summary":{"title":"wetty vulnerable to DOM XSS via file-download filename","description":"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, an SSH MOTD, a `curl` response - that contains `\\x1b[5i...:...\\x1b[4i` runs script in the wetty origin and types attacker-chosen keystrokes into the victim's SSH session. 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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, an SSH MOTD, a `curl` response - that contains `\\x1b[5i...:...\\x1b[4i` runs script in the wetty origin and types attacker-chosen keystrokes into the victim's SSH session. Version 3.0.4 fixes the issue.","Type":"Description","Title":"wetty vulnerable to DOM XSS via file-download filename"}]}}}