CVE-2026-106102: Quasar Framework: Stored/Reflected XSS via unescaped SSR meta tag rendering in getHead()

October 7, 2026

Type: CWE-79 Cross-Site Scripting
Auth required: No (attacker only needs to influence any text that reaches useMeta() — an extremely common pattern, e.g. blog titles, product names, user display names)
Consequence: Full client-side script execution in the victim site’s origin — session/cookie theft, credential phishing overlays, account takeover, defacement. Unlike a typical XSS bug requiring a specific unusual injection point, this affects the single most common useMeta() use case (rendering any dynamic title/description), so it can be triggered even by ordinary content containing &, <, or " without malicious intent, in addition to being trivially exploitable deliberately.

References

Code Behaviors & Features

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