What is GHSA-v9wp-8r97-v6xg?

Versions of `jquery.json-viewer` prior to 1.3.0 are vulnerable to Cross-Site Scripting (XSS). The package insufficiently sanitizes user input when creating links, and concatenates the user input in an ` ` tag. This allows attackers to create malicious links with JSON payloads such as: ``` { "foo": "https://bar.com\" onmouseover=alert('xss') \"" } ``` This may lead to arbitrary JavaScript execution in a victim's browser. ## Recommendation Upgrade to version 1.3.0 or later.

How severe is GHSA-v9wp-8r97-v6xg?

No CVSS score has been assigned to GHSA-v9wp-8r97-v6xg yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-v9wp-8r97-v6xg?

GHSA-v9wp-8r97-v6xg affects the following packages: jquery.json-viewer (npm). Ecosystems affected: npm.

How do I fix GHSA-v9wp-8r97-v6xg?

Update jquery.json-viewer to 1.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-v9wp-8r97-v6xg is resolved across your whole dependency graph.

How do I detect GHSA-v9wp-8r97-v6xg in my npm dependencies?

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.

How do I mitigate GHSA-v9wp-8r97-v6xg if there is no patch (or I can't update yet)?

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.

Is GHSA-v9wp-8r97-v6xg actively exploited in the wild?

No public exploit code has been indexed for GHSA-v9wp-8r97-v6xg 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 GHSA-v9wp-8r97-v6xg published, and has it been updated?

GHSA-v9wp-8r97-v6xg was published on September 3, 2020 and was last updated on August 31, 2020. 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

Cross-Site Scripting in jquery.json-viewerGHSA-v9wp-8r97-v6xg

GHSA-v9wp-8r97-v6xg is a security vulnerability in jquery.json-viewer. A fix is available for jquery.json-viewer — see the affected versions and patch details below.

Published

Sep 3, 2020

Updated

Aug 31, 2020

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Aug 31, 2020 · 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.

11other npm packages depend on this — each one inherits the vulnerability until it's patched upstream

jquery.json-viewernpm

12Kdownloads / week

Description

Versions of jquery.json-viewer prior to 1.3.0 are vulnerable to Cross-Site Scripting (XSS). The package insufficiently sanitizes user input when creating links, and concatenates the user input in an <a> tag. This allows attackers to create malicious links with JSON payloads such as:

{
  "foo": "https://bar.com\" onmouseover=alert('xss') \""
}

This may lead to arbitrary JavaScript execution in a victim's browser.

Recommendation

Upgrade to version 1.3.0 or later.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`jquery.json-viewer`	all versions	1.3.0`npm install jquery.json-viewer@1.3.0`

Detection & mitigation playbook

Open-source dependency

Detect
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 1.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-v9wp-8r97-v6xg 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

Versions of `jquery.json-viewer` prior to 1.3.0 are vulnerable to Cross-Site Scripting (XSS). The package insufficiently sanitizes user input when creating links, and concatenates the user input in an `<a>` tag. This allows attackers to create malicious links with JSON payloads such as: ``` { "foo": "https://bar.com\" onmouseover=alert('xss') \"" } ``` This may lead to arbitrary JavaScript execution in a victim's browser. ## Recommendation Upgrade to version 1.3.0 or later.

O3 Security · Impact-Aware SCA

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