+++ This bug was initially created as a clone of Bug #1229860 +++

Webpack is a module bundler. Its main purpose is to bundle JavaScript files for
usage in a browser, yet it is also capable of transforming, bundling, or
packaging just about any resource or asset. The webpack developers have
discovered a DOM Clobbering vulnerability in Webpack’s
`AutoPublicPathRuntimeModule`. The DOM Clobbering gadget in the module can lead
to cross-site scripting (XSS) in web pages where scriptless attacker-controlled
HTML elements (e.g., an `img` tag with an unsanitized `name` attribute) are
present. Real-world exploitation of this gadget has been observed in the Canvas
LMS which allows a XSS attack to happen through a javascript code compiled by
Webpack (the vulnerable part is from Webpack). DOM Clobbering is a type of
code-reuse attack where the attacker first embeds a piece of non-script,
seemingly benign HTML markups in the webpage (e.g. through a post or comment)
and leverages the gadgets (pieces of js code) living in the existing javascript
code to transform it into executable code. This vulnerability can lead to
cross-site scripting (XSS) on websites that include Webpack-generated files and
allow users to inject certain scriptless HTML tags with improperly sanitized
name or id attributes. This issue has been addressed in release version 5.94.0.
All users are advised to upgrade. There are no known workarounds for this
issue.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-43788
https://bugzilla.redhat.com/show_bug.cgi?id=2308193
https://www.cve.org/CVERecord?id=CVE-2024-43788
https://github.com/webpack/webpack/commit/955e057abc6cc83cbc3fa1e1ef67a49758bf5a61
https://github.com/webpack/webpack/security/advisories/GHSA-4vvj-4cpr-p986
https://research.securitum.com/xss-in-amp4email-dom-clobbering
https://scnps.co/papers/sp23_domclob.pdf