Description (CNA)
webpack-dev-server versions up to and including 5.2.3 are vulnerable to cross-origin source code exposure when serving over a non-potentially trustworthy origin such as plain HTTP. The previous fix relied on the Sec-Fetch-Mode and Sec-Fetch-Site request headers, which browsers omit for non-trustworthy origins, allowing a malicious site to load the bundled source as a script and read it across origins. Impact: an attacker controlling a website visited by a developer running webpack-dev-server can recover the application source code when the dev server runs over HTTP at a guessable host and port. Chromium based browsers from Chrome 142 onward are not affected due to local network access restrictions. Upgrade to webpack-dev-server 5.2.4 or later, which sets Cross-Origin-Resource-Policy: same-origin on responses.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| webpack-dev-server / webpack-dev-server | affected 0 before 5.2.4; unaffected 5.2.4 |
CWE
CWE-749
References
- https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-79cf-xcqc-c78w
- https://cna.openjsf.org/security-advisories.html
ADP enrichment
No English description supplied.
No references supplied.