GHSA-4f9m-pxwh-68hg Cross-Site Scripting in swagger-ui
Attackers can execute arbitrary JavaScript via unsanitized URLs in the OAuth flow, affecting users of the swagger-ui library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is GHSA-4f9m-pxwh-68hg?
GHSA-4f9m-pxwh-68hg is a cross-site scripting vulnerability in swagger-ui, published on 11 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Versions of swagger-ui prior to 3.20.9 are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize URLs used in the OAuth auth flow, which may allow attackers to execute arbitrary JavaScript.
Recommendation
Upgrade to version 3.20.9 or later.
Which versions are affected by GHSA-4f9m-pxwh-68hg?
2 open source packages ship an affected version, including swagger-ui.
| Package | Affected | Fixed in |
|---|---|---|
swagger-ui npm | All versions | 3.20.9 |
swagger-ui npm | All versions | 3.20.9 |
How do I fix GHSA-4f9m-pxwh-68hg?
Upgrade swagger-ui to 3.20.9 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is GHSA-4f9m-pxwh-68hg being exploited?
There is no known exploitation of GHSA-4f9m-pxwh-68hg in the wild and no public exploit code.