Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1yM2hmLXE4cTctZnYycM4AA1LN

Angular critical CSS inlining Cross-site Scripting Vulnerability Advisory

Impact

Angular Universal applications on 16.1.0 and 16.1.1 using critical CSS inlining are vulnerable to a cross-site scripting (XSS) attack where an attacker can trick another user into visiting a page which injects malicious JavaScript.

Angular CLI applications without Universal do perform critical CSS inlining as well, however exploiting this requires a malicious actor to already have access to modify source code directly.

Patches

@nguniversal/common should be upgraded to 16.1.2 or higher. 16.2.0-rc.0 is safe.

Workarounds

The easiest solution is likely to upgrade Universal to 16.1.2 or downgrade to 16.0.x or lower. Alternatively you can override specifically the critters dependency with version 0.0.20 in your package.json.

{
  "overrides": {
    "critters": "0.0.20"
  }
}

References

• Angular Blog Post

Permalink: https://github.com/advisories/GHSA-r3hf-q8q7-fv2p
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1yM2hmLXE4cTctZnYycM4AA1LN
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: 9 months ago
Updated: 9 months ago

Identifiers: GHSA-r3hf-q8q7-fv2p
References:

• https://github.com/angular/universal/security/advisories/GHSA-r3hf-q8q7-fv2p
• https://github.com/advisories/GHSA-r3hf-q8q7-fv2p

Repository: https://github.com/angular/universal
Blast Radius: 0.0

Affected Packages