CVE-2026-41904: falha de alta gravidade em freescout-help-desk freescout
FreeScout Stored XSS vulnerability in mailbox auto-reply: payload reaches every customer's email client (no CSP), bypassing strip_tags validator with mixed text+HTML content
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.6epss 0.2%
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, a user with updateAutoReply permission can store an XSS payload in the mailbox auto-reply message. The payload is rendered unescaped in the auto-reply email sent to every customer who contacts the mailbox. Email clients do not enforce CSP, so the payload executes in the customer's webmail / mail-client context. This issue has been patched in version 1.8.217.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Produtos afetados
freescout-help-desk · freescoutCVEs relacionadas — freescout-help-desk freescout
No mesmo produto, das mais perigosas para as menos.
CVE-2026-28289CRITICALFreeScout 1.8.206 Patch Bypass for CVE-2026-27636 via Zero-Width Space Character Leads to Remote Code ExecutionEPSS 35.1%CVE-2026-27636HIGHFreeScout: Missing .htaccess in Restricted File Extensions Allows Remote Code Execution on ApacheEPSS 2.2%CVE-2026-53595CRITICALFreeScout vulnerable to anonymous account takeover via /user-setup empty invite_hash on MySQLEPSS 1.9%CVE-2025-48471HIGHFreeScout Vulnerable to Arbitrary File UploadEPSS 1.2%CVE-2025-54366HIGHFreeScout's deserialization of untrusted data leads to Remote Code ExecutionEPSS 1.1%CVE-2025-48389HIGHFreeScout Vulnerable to Deserialization of Untrusted DataEPSS 1.0%