XSS in Dart
CVE-2020-8923

5.4MEDIUM

Key Information:

Vendor

Google
Status
Dart Sdk
Vendor
CVE Published:
26 March 2020

What is CVE-2020-8923?

An improper HTML sanitization in Dart versions up to and including 2.7.1 and dev versions 2.8.0-dev.16.0, allows an attacker leveraging DOM Clobbering techniques to skip the sanitization and inject custom html/javascript (XSS). Mitigation: update your Dart SDK to 2.7.2, and 2.8.0-dev.17.0 for the dev version. If you cannot update, we recommend you review the way you use the affected APIs, and pay special attention to cases where user-provided data is used to populate DOM nodes. Consider using Element.innerText or Node.text to populate DOM elements.

Affected Version(s)

Dart SDK stable <= 2.7.1

Dart SDK dev <= 2.8.0-dev.16.0

References

https://github.com/dart-lang/sdk/security/advisories/GHSA...
x_refsource_CONFIRM

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Vincenzo di Cicco
.