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MEDIUM severity

CVE-2016-5682 — swagger-ui

MEDIUM

CVE-2016-5682 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in swagger-ui. A fix is available for swagger-ui — see the affected versions and patch details below.

Cross-Site Scripting in swagger-ui

Also known asGHSA-p239-93f7-h6xf
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.0%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs63th percentile — riskier than 63% of all scored CVEsHighest risk
0.00%0.51%1.02%1.53%0.3%1.0%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2016-5682 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,386 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

168other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
swagger-uinpm
117Kdownloads / week

Description

Affected versions of swagger-ui contain a cross-site scripting vulnerability in the key names of a specific nested object in the JSON document.

Proof of Concept

The vulnerable object structure is:

{
    "definitions": {
        "arbitraryVal": {
            "properties": {
                "<INJECTABLE_KEY_NAME>": "LoremIpsum"
                }
            }
        }
}

Malicious JSON documents can be loaded in by providing a URL to them in the url query string parameter.

Recommendation

Update to version 2.2.1 or later.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmswagger-uiall versions2.2.1npm install swagger-ui@2.2.1

Affected Products

1 product · 1 configurations
Application
swagger-uismartbear
< 2.2.1
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for swagger-ui, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update swagger-ui to 2.2.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-5682 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

Affected versions of `swagger-ui` contain a cross-site scripting vulnerability in the key names of a specific nested object in the JSON document. ## Proof of Concept The vulnerable object structure is: ``` { "definitions": { "arbitraryVal": { "properties": { "<INJECTABLE_KEY_NAME>": "LoremIpsum" } } } } ``` Malicious JSON documents can be loaded in by providing a URL to them in the `url` query string parameter. ## Recommendation Update to version 2.2.1 or later.
O3 Security · Impact-Aware SCA

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CVE-2016-5682: swagger-ui XSS — Fixed in 2.2.1