CVE-2021-32764 – YouTube Onebox susceptible to XSS

https://notcve.org/view.php?id=CVE-2021-32764

15 Jul 2021 — Discourse is an open-source discussion platform. In Discourse versions 2.7.5 and prior, parsing and rendering of YouTube Oneboxes can be susceptible to XSS attacks. This vulnerability only affects sites which have modified or disabled Discourse's default Content Security Policy. The issue is patched in `stable` version 2.7.6, `beta` version 2.8.0.beta3, and `tests-passed` version 2.8.0.beta3. As a workaround, ensure that the Content Security Policy is enabled, and has not been modified in a way which would ... • https://github.com/discourse/discourse/security/advisories/GHSA-9x4c-29xg-56hw • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •