XSS in Dart SDK
CVE-2021-22540

6.1MEDIUM

Key Information:

Vendor

Google
Status
Dart Sdk
Vendor
CVE Published:
22 April 2021

What is CVE-2021-22540?

Bad validation logic in the Dart SDK versions prior to 2.12.3 allow an attacker to use an XSS attack via DOM clobbering. The validation logic in dart:html for creating DOM nodes from text did not sanitize properly when it came across template tags.

Affected Version(s)

Dart SDK stable < 2.12.3

References

https://github.com/dart-lang/sdk/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/dart-lang/sdk/commit/ce5a1c2392debce96...
x_refsource_CONFIRM

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Vincenzo di Cicco
.