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Cross-Site Scripting in swagger-ui

Critical severity GitHub Reviewed Published Sep 1, 2020 to the GitHub Advisory Database • Updated Jan 9, 2023

Package

npm swagger-ui (npm)

Affected versions

< 2.2.1

Patched versions

2.2.1

Description

Affected versions of swagger-ui are vulnerable to cross-site scripting in both the consumes and produces parameters of the swagger JSON document for a given API.

Additionally, swagger-ui allows users to load arbitrary swagger JSON documents via the query string parameter url, allowing an attacker to exploit this attack against any user that the attacker can convince to visit a crafted link.

Proof of Concept

http://<USER_HOSTNAME>/swagger-ui/index.html?url=http://<MALICIOUS_HOSTNAME>/malicious-swagger-file.json

Recommendation

Update to version 2.2.1 or later.

References

Reviewed Aug 31, 2020
Published to the GitHub Advisory Database Sep 1, 2020
Last updated Jan 9, 2023

Severity

Critical

EPSS score

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2016-1000226

GHSA ID

GHSA-7f59-x49p-v8mq

Source code

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