GHSA-jp6r-xcjj-5h7r
MEDIUMGHSA-jp6r-xcjj-5h7r is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in cyberchef. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-jp6r-xcjj-5h7r is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Cross-Site Scripting in cyberchef
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
cyberchefnpmDescription
Versions of cyberchef prior to 8.31.3 are vulnerable to Cross-Site Scripting. In Text Encoding Brute Force the table rows are created by concatenating the value variable unsanitized in the HTML code. If this variable is controlled by user input it allows attackers to execute arbitrary JavaScript in a victim's browser.
Recommendation
Upgrade to version 8.31.3 or later.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | cyberchef | all versions | 8.31.3 |
Research 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 cyberchef. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update cyberchef to 8.31.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-jp6r-xcjj-5h7r is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-jp6r-xcjj-5h7r is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-jp6r-xcjj-5h7r. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-jp6r-xcjj-5h7r in your dependencies?
O3 detects GHSA-jp6r-xcjj-5h7r across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.