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OpenAdvisories
Medium · 5.4 CVE-2020-8923 EUVD-2020-29756

XSS in Dart

Published Mar 26, 2020 · Updated Aug 4, 2024 · Assigned by Google

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.

Affected products

VendorProductAffectedFixed
Google Dart SDK stable – ≤ 2.7.1, dev – ≤ 2.8.0-dev.16.0 —

References