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📦 npm

GHSA-x9p2-fxq6-2m5f

MEDIUM

Reverse Tabnapping in swagger-ui

Published
Jun 20, 2019
Updated
Aug 16, 2021
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected

Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.

swagger-uinpm
163Kdownloads / week

Description

Versions of swagger-ui prior to 3.18.0 are vulnerable to Reverse Tabnapping. The package uses target='_blank' in anchor tags, allowing attackers to access window.opener for the original page. This is commonly used for phishing attacks.

Recommendation

Upgrade to version 3.18.0 or later.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmswagger-uiall versions3.18.0

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. 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.

  2. Fix

    Update swagger-ui to 3.18.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-x9p2-fxq6-2m5f is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-x9p2-fxq6-2m5f 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 GHSA-x9p2-fxq6-2m5f. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Versions of `swagger-ui` prior to 3.18.0 are vulnerable to [Reverse Tabnapping](https://www.owasp.org/index.php/Reverse_Tabnabbing). The package uses `target='_blank'` in anchor tags, allowing attackers to access `window.opener` for the original page. This is commonly used for phishing attacks. ## Recommendation Upgrade to version 3.18.0 or later.
O3 Security · Impact-Aware SCA

Is GHSA-x9p2-fxq6-2m5f in your dependencies?

O3 detects GHSA-x9p2-fxq6-2m5f across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.