How severe is GHSA-h9wr-xr4r-66fh?

No CVSS score has been assigned to GHSA-h9wr-xr4r-66fh yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-h9wr-xr4r-66fh?

GHSA-h9wr-xr4r-66fh affects the following packages: dmn-js-properties-panel (npm). Ecosystems affected: npm.

How do I fix GHSA-h9wr-xr4r-66fh?

Update dmn-js-properties-panel to 0.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-h9wr-xr4r-66fh is resolved across your whole dependency graph.

How do I detect GHSA-h9wr-xr4r-66fh in my npm dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for dmn-js-properties-panel, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-h9wr-xr4r-66fh 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-h9wr-xr4r-66fh actively exploited in the wild?

No public exploit code has been indexed for GHSA-h9wr-xr4r-66fh 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-h9wr-xr4r-66fh published, and has it been updated?

GHSA-h9wr-xr4r-66fh 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 dmn-js-properties-panelGHSA-h9wr-xr4r-66fh

GHSA-h9wr-xr4r-66fh is a security vulnerability in dmn-js-properties-panel. A fix is available for dmn-js-properties-panel — 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.

16other npm packages depend on this — each one inherits the vulnerability until it's patched upstream

dmn-js-properties-panelnpm

12Kdownloads / week

Description

Versions of dmn-js-properties-panel prior to 0.8.0 are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize input in specially configured diagrams, which may allow attackers to inject arbitrary JavaScript in the embedding website.

Recommendation

Upgrade to version 0.3.0 or later.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`dmn-js-properties-panel`	all versions	0.3.0`npm install dmn-js-properties-panel@0.3.0`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for dmn-js-properties-panel, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update dmn-js-properties-panel to 0.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-h9wr-xr4r-66fh 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 `dmn-js-properties-panel` prior to 0.8.0 are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize input in specially configured diagrams, which may allow attackers to inject arbitrary JavaScript in the embedding website. ## Recommendation Upgrade to version 0.3.0 or later.

O3 Security · Impact-Aware SCA

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