| Package | Affected versions | Patched versions |
|---|---|---|
| preact | ≥ 10.0.0-alpha.0, < 10.0.0-beta.1 | 10.0.0-beta.1 |
Versions of preact 10.x on prerelease tags alpha and beta prior to 10.0.0-beta.1 are vulnerable to HTML Injection. Due to insufficient input validation the package allows attackers to inject JavaScript objects as virtual-dom nodes, which may lead to Cross-Site Scripting. This requires user input parsed with JSON.parse() to be passed directly into JSX without sanitization.
Upgrade to version 10.0.0-beta.1.
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