How severe is GHSA-vmh4-322v-cfpc?

No CVSS score has been assigned to GHSA-vmh4-322v-cfpc yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-vmh4-322v-cfpc?

GHSA-vmh4-322v-cfpc affects the following packages: cmmn-js-properties-panel (npm). Ecosystems affected: npm.

How do I fix GHSA-vmh4-322v-cfpc?

Update cmmn-js-properties-panel to 0.8.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-vmh4-322v-cfpc is resolved across your whole dependency graph.

How do I detect GHSA-vmh4-322v-cfpc in my npm dependencies?

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

How do I mitigate GHSA-vmh4-322v-cfpc 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-vmh4-322v-cfpc actively exploited in the wild?

No public exploit code has been indexed for GHSA-vmh4-322v-cfpc 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-vmh4-322v-cfpc published, and has it been updated?

GHSA-vmh4-322v-cfpc 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 cmmn-js-properties-panelGHSA-vmh4-322v-cfpc

GHSA-vmh4-322v-cfpc is a security vulnerability in cmmn-js-properties-panel. A fix is available for cmmn-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.

2other npm packages depend on this — each one inherits the vulnerability until it's patched upstream

cmmn-js-properties-panelnpm

2Kdownloads / week

Description

Versions of cmmn-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 0.8.0 or later.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`cmmn-js-properties-panel`	all versions	0.8.0`npm install cmmn-js-properties-panel@0.8.0`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for cmmn-js-properties-panel, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update cmmn-js-properties-panel to 0.8.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-vmh4-322v-cfpc 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 `cmmn-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 0.8.0 or later.

O3 Security · Impact-Aware SCA

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