GHSA-7x7c-qm48-pq9c is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in karma. 1 public exploit reference exists, so weaponization risk is real. A fix is available for karma — see the affected versions and patch details below.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
GHSA-7x7c-qm48-pq9c by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 385,738 CVEs with a current EPSS score, this one falls in the 10–50% band (highlighted). Counts from FIRST.org, log-scaled.
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.
karmanpmDescription
karma prior to version 6.3.14 contains a cross-site scripting vulnerability.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | karma | all versions | 6.3.14npm install karma@6.3.14 |
Affected Products
karmakarma_projectResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for karma, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update karma to 6.3.14 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-7x7c-qm48-pq9c 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.
How to detect GHSA-7x7c-qm48-pq9c
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id ghsa-7x7c-qm48-pq9c -u https://target- Template
- karma-runner DOM-based Cross-Site Scripting
- Severity
- medium
- Impact
- Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to potential data theft, session hijacking, or defacement of the affected website.
- Remediation
- Upgrade to the latest version of karma-runner that includes proper input sanitization to mitigate this vulnerability.
Template by ProjectDiscovery nuclei-templates (pikpikcu), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is GHSA-7x7c-qm48-pq9c in your dependencies?
Find it across npm, including transitive dependencies.