CVE-2020-8923

XSS in Dart

State: Published
Severity: 5.4 Medium
Published: Mar 26, 2020
Updated: Aug 4, 2024
Reserved: Feb 12, 2020

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N	Google

Weaknesses

CWE-79 Cross-site Scripting (XSS)

Affected Products

Product	Versions
Dart SDKGoogle	stable through 2.7.1Affected dev through 2.8.0-dev.16.0Affected

References

https://github.com/dart-lang/sdk/security/advisories/GHSA-hfq3-v9pv-p627

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.