Wagtail is an open source content management system built on Django. Prior to versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1, a stored cross-site scripting (XSS) vulnerability exists on confirmation messages within the wagtail.contrib.simple_translation module. A user with access to the Wagtail admin area may create a page with a specially-crafted title which, when another user performs the "Translate" action, causes arbitrary JavaScript code to run. This could lead to performing actions with that user's credentials. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. This issue has been patched in versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1.
https://github.com/wagtail/wagtail/security/advisories/GHSA-p4v8-rw59-93cq
https://github.com/wagtail/wagtail/releases/tag/v7.3.1
https://github.com/wagtail/wagtail/releases/tag/v7.2.3
https://github.com/wagtail/wagtail/releases/tag/v7.0.6
https://github.com/wagtail/wagtail/releases/tag/v6.3.8
https://github.com/wagtail/wagtail/commit/ee39d39deeb7f250fe886417b24802d7e05b1143
https://github.com/wagtail/wagtail/commit/d8c5900982df8ed5938ad993aa9ff69cda50f80c
https://github.com/wagtail/wagtail/commit/ba70244d376a7b1bd180ded03e827917ff410c19
https://github.com/wagtail/wagtail/commit/1c6f2effed68f4ccad6fbd07987e03641505f863