Reflected cross-site scripting (XSS) vulnerabilityGHSA-hrgx-7j6v-xj82
HIGHFix: keystonejs/keystone@96bf833GHSA-hrgx-7j6v-xj82 is a high-severity (CVSS 7.1) Cross-site Scripting (XSS) vulnerability in @keystone-6/auth. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for @keystone-6/auth — 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.
@keystone-6/authnpm@keystone-next/authnpmDescription
This security advisory relates to a capability for an attacker to exploit a reflected cross-site scripting vulnerability when using the @keystone-6/auth package.
Impact
The vulnerability can impact users of the administration user interface when following an untrusted link to the signin or init page.
This is a targeted attack and may present itself in the form of phishing and or chained in conjunction with some other vulnerability.
Vulnerability mitigation
Please upgrade to @keystone-6/auth >= 1.0.2, where this vulnerability has been closed.
If you are using @keystone-next/auth, we strongly recommend you upgrade to @keystone-6.
Workarounds
If for some reason you cannot upgrade the dependencies in software, you could alternatively
- disable the administration user interface, or
- if using a reverse-proxy, strip query parameters when accessing the administration interface
References
https://owasp.org/www-community/attacks/xss/
Thanks to Shivansh Khari (@Shivansh-Khari) for discovering and reporting this vulnerability
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @keystone-6/auth | all versions | 1.0.2npm install @keystone-6/auth@1.0.2 |
| 📦npm | @keystone-next/auth | all versions | No fix |
Affected Products
keystonekeystonejsResearch 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 @keystone-6/auth, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update @keystone-6/auth to 1.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hrgx-7j6v-xj82 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-hrgx-7j6v-xj82
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id ghsa-hrgx-7j6v-xj82 -u https://target- Template
- Keystone 6 Login Page - Open Redirect and Cross-Site Scripting
- Severity
- medium
- Impact
- Attackers can redirect users to malicious websites or inject malicious JavaScript via the from parameter, potentially facilitating phishing attacks or stealing user credentials.
- Remediation
- Please upgrade to @keystone-6/auth >= 1.0.2, where this vulnerability has been closed. If you are using @keystone-next/auth, we strongly recommend you upgrade to @keystone-6
Template by ProjectDiscovery nuclei-templates (ShivanshKhari), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is GHSA-hrgx-7j6v-xj82 in your dependencies?
Find it across npm, including transitive dependencies.