GHSA-w992-2gmj-9xxj Cross-Site Scripting in swagger-ui
Attackers can execute arbitrary JavaScript via unsanitized HTML in API descriptions, affecting Swagger UI users.
- 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-w992-2gmj-9xxj?
GHSA-w992-2gmj-9xxj 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 2.2.1 are vulnerable to Cross-Site Scripting (XSS). The package allows HTML code in the swagger.apiInfo.description value without proper sanitization, which may allow attackers to execute arbitrary JavaScript.
Recommendation
Upgrade to version 2.2.1 or later.
Which versions are affected by GHSA-w992-2gmj-9xxj?
2 open source packages ship an affected version, including swagger-ui.
| Package | Affected | Fixed in |
|---|---|---|
swagger-ui npm | All versions | 2.2.1 |
swagger-ui npm | All versions | 2.2.1 |
How do I fix GHSA-w992-2gmj-9xxj?
Upgrade swagger-ui to 2.2.1 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-w992-2gmj-9xxj being exploited?
There is no known exploitation of GHSA-w992-2gmj-9xxj in the wild and no public exploit code.