CVE-2022-23631
9.0 · CRITICALOverview
CVE-2022-23631 is a critical-severity vulnerability affecting blitzjs blitz. It was published on February 9, 2022 and has a CVSS 3.1 base score of 9.0 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
superjson is a program to allow JavaScript expressions to be serialized to a superset of JSON. In versions prior to 1.8.1 superjson allows input to run arbitrary code on any server using superjson input without prior authentication or knowledge. The only requirement is that the server implements at least one endpoint which uses superjson during request processing. This has been patched in superjson 1.8.1. Users are advised to update. There are no known workarounds for this issue.
Remediation
Check the references section for vendor advisories and patches from blitzjs. Update blitz to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| blitzjs | blitz | >= 0, < 0.45.3 | Affected |
| blitzjs | superjson | >= 0, < 1.8.1 | Affected |
References
Frequently Asked Questions
What is CVE-2022-23631?
CVE-2022-23631 is a critical-severity vulnerability affecting blitzjs blitz. It was published on February 9, 2022 and has a CVSS 3.1 base score of 9.0 (CRITICAL).
How severe is CVE-2022-23631?
This vulnerability has a CVSS 3.1 base score of 9.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2022-23631?
Check the references section for vendor advisories and patches from blitzjs. Update blitz to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-23631?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-23631 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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