GHSA-8v67-x8q5-3x3g is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in simditor. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for simditor — 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
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.
simditornpmDescription
Versions of simditor prior to 2.3.22 are vulnerable to Cross-Site Scripting. The package does not sanitize user input that is rendered with innerHTML, allowing attackers to execute arbitrary JavaScript.
Recommendation
Upgrade to version 2.3.22 or later.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | simditor | all versions | 2.3.22npm install simditor@2.3.22 |
Affected Products
simditormycolorwayResearch 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 simditor, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update simditor to 2.3.22 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8v67-x8q5-3x3g 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 GHSA-8v67-x8q5-3x3g in your dependencies?
Find it across npm, including transitive dependencies.