CVE-2022-30241 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in jquery.json-viewer. A fix is available for jquery.json-viewer — see the affected versions and patch details below.
Cross-site Scripting in jquery.json-viewer
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
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.
jquery.json-viewernpmDescription
The jquery.json-viewer library before version 1.5.0 for Node.js does not properly escape characters such as < in a JSON object, as demonstrated by a SCRIPT element.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | jquery.json-viewer | all versions | 1.5.0npm install jquery.json-viewer@1.5.0 |
Affected Products
jquery json-viewerjquery_json-viewer_projectDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for jquery.json-viewer, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update jquery.json-viewer to 1.5.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-30241 is resolved across your whole dependency graph.
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
Is CVE-2022-30241 in your dependencies?
Find it across npm, including transitive dependencies.