In short
- CVE-2026-9520 is a MEDIUM (CVSS 4.3) vulnerability affecting blitz.
- Chance of exploitation in the next 30 days (EPSS): 0.34%, higher than 27.1% of all vulnerabilities.
- No patched version is listed yet: follow the vendor's advisory in References.
| Package | Affected versions | Patched versions |
|---|
| blitz npm | ≤ 3.0.2
| No fix yet |
Description
A weakness has been identified in blitz-js blitz up to 3.0.2 on GitHub. This impacts an unknown function of the file packages/generator/templates/app/src/app/auth/components/LoginForm.tsx of the component Sign-in. This manipulation of the argument Next causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
NVD description
A weakness has been identified in blitz-js blitz up to 3.0.2 on GitHub. This impacts an unknown function of the file packages/generator/templates/app/src/app/auth/components/LoginForm.tsx of the component Sign-in. This manipulation of the argument Next causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
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