CVE Watch3 oct 2026

CVE-2026-105090

Formbricks before 5.4.4 and 6 before 6.0.1 allows stored XSS. The survey-level Custom Head Scripts feature did not enforce the documented Ma

CVSS

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Sin CVSS

EPSS

0.3%

p16

KEV

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Exploit Today

0-100

Publicado: 3 oct 2026 · Última mod.: 3 oct 2026 · CWE-863

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-10-032026-10-04

Descripción técnica

Formbricks before 5.4.4 and 6 before 6.0.1 allows stored XSS. The survey-level Custom Head Scripts feature did not enforce the documented Manage permission boundary. A workspace member holding only readWrite permission could configure Custom Head Scripts on a survey, an operation the documentation restricts to the Manage role. Because the configured scripts execute in the authenticated browser session of any user who opens the affected survey, a lower-privileged member can run arbitrary JavaScript (stored cross-site scripting) in the session of higher-privileged users. Fixed versions require Manage access to modify survey Custom Head Scripts.

Referencias oficiales

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