How severe is CVE-2016-1000233?

No CVSS score has been assigned to CVE-2016-1000233 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2016-1000233?

CVE-2016-1000233 affects the following packages: swagger-ui (npm). Ecosystems affected: npm.

How do I fix CVE-2016-1000233?

Update swagger-ui to 2.2.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-1000233 is resolved across your whole dependency graph.

How do I detect CVE-2016-1000233 in my npm dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for swagger-ui. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate CVE-2016-1000233 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against CVE-2016-1000233?

O3 pinpoints whether CVE-2016-1000233 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is CVE-2016-1000233 actively exploited in the wild?

No public exploit code has been indexed for CVE-2016-1000233 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was CVE-2016-1000233 published, and has it been updated?

CVE-2016-1000233 was published on September 1, 2020 and was last updated on November 8, 2023. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

📦 npm

Not in CISA KEV

CVE-2016-1000233

Fix: swagger-api/swagger-ui@331d2be

CVE-2016-1000233 is a security vulnerability in swagger-ui. O3 Security confirms whether CVE-2016-1000233 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Cross-Site Scripting in swagger-ui

Published

Sep 1, 2020

Updated

Nov 8, 2023

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 8, 2023 · OSV.dev, FIRST.org (EPSS)

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.

167other npm packages depend on this — each one inherits the vulnerability until it's patched upstream

swagger-uinpm

157Kdownloads / week

Description

Affected versions of swagger-ui are vulnerable to cross-site scripting. This vulnerability exists because swagger-ui automatically executes external Javascript that is loaded in via the url query string parameter when a Content-Type: application/javascript header is included.

An attacker can create a server that replies with a malicious script and the proper content-type, and then craft a swagger-ui URL that includes the location to their server/script in the url query string parameter. When viewed, such a link would execute the attacker's malicious script.

Recommendation

Update to 2.2.1 or later.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`swagger-ui`	all versions	2.2.1

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for swagger-ui. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
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-2016-1000233 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2016-1000233 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to CVE-2016-1000233. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Affected versions of `swagger-ui` are vulnerable to cross-site scripting. This vulnerability exists because `swagger-ui` automatically executes external Javascript that is loaded in via the `url` query string parameter when a `Content-Type: application/javascript` header is included. An attacker can create a server that replies with a malicious script and the proper content-type, and then craft a `swagger-ui` URL that includes the location to their server/script in the `url` query string parameter. When viewed, such a link would execute the attacker's malicious script. ## Recommendation Up

O3 Security · Impact-Aware SCA

Is CVE-2016-1000233 in your dependencies?

O3 detects CVE-2016-1000233 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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