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MEDIUM severity

CVE-2021-46708 — swagger-ui-dist

MEDIUM

CVE-2021-46708 is a medium-severity (CVSS 6.1) CWE-1021 vulnerability in swagger-ui-dist. A fix is available for swagger-ui-dist — see the affected versions and patch details below.

Spoofing attack in swagger-ui-dist

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 ↗
1.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs73th percentile — riskier than 73% of all scored CVEsHighest risk
0.00%0.66%1.33%1.99%0.3%1.5%Apr 26Aug 26Oct 26

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

How urgent is this, really

CVE-2021-46708 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.

556other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
swagger-ui-distnpm
13.6Mdownloads / week

Description

The swagger-ui-dist package before 4.1.3 for Node.js could allow a remote attacker to hijack the clicking action of the victim. By persuading a victim to visit a malicious Web site, a remote attacker could exploit this vulnerability to hijack the victim's click actions and possibly launch further attacks against the victim.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmswagger-ui-distall versions4.1.3npm install swagger-ui-dist@4.1.3

Affected Products

1 product · 1 configurations
Application
swagger-ui-distsmartbear
< 4.1.3
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-dist, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update swagger-ui-dist to 4.1.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-46708 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.

Frequently Asked Questions

The swagger-ui-dist package before 4.1.3 for Node.js could allow a remote attacker to hijack the clicking action of the victim. By persuading a victim to visit a malicious Web site, a remote attacker could exploit this vulnerability to hijack the victim's click actions and possibly launch further attacks against the victim.
O3 Security · Impact-Aware SCA

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CVE-2021-46708: swagger-ui-dist — Fixed in 4.1.3