In Astro-Shield, setting a correct `integrity` attribute to injected code allows to bypass the allow-lists
Impact
Versions from 1.2.0 to 1.3.1 of Astro-Shield allow to bypass the allow-lists for cross-origin resources by introducing valid integrity attributes to the injected code. This implies that the injected SRI hash would be added to the generated CSP header, which would lead the browser to believe that the injected resource is legit.
To exploit this vulnerability, the attacker needs to first inject code into the rendered pages by exploiting other not-related potential vulnerabilities.
Patches
Version 1.3.2 provides a patch.
Workarounds
- To not use the middleware functionality of Astro-Shield.
- To use the middleware functionality of Astro-Shield ONLY for content that cannot be controlled in any way by external users.
References
Are there any links users can visit to find out more?
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @kindspells/astro-shield | >= 1.2.0, < 1.3.2 | 1.3.2 |
References
- https://github.com/kindspells/astro-shield/security/advisories/GHSA-c4gr-q97g-ppwc
- https://nvd.nist.gov/vuln/detail/CVE-2024-30250
- https://github.com/kindspells/astro-shield/commit/1221019306f501bf5fa9bcfb5a23a2321d34ba0a
- https://github.com/kindspells/astro-shield/commit/5ae8b8ef4f681d3a81431ee7e79d5dec545c6e1f
- https://github.com/kindspells/astro-shield
- https://github.com/kindspells/astro-shield/releases/tag/1.3.2
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-345- Platform
- npm
- Package
@kindspells/astro-shield- Disclosed
- 01.04.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-c4gr-q97g-ppwc - CC BY 4.0
Vulnerability history: @kindspells/astro-shield
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 03.2024 04.2024
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
Disclosures per year
- 2024: 2
- 2025: 0
- 2026: 0
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In Astro-Shield, setting a correct `integrity` attribute to injected code allows to bypass the allow-lists this entry
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