CVE-2022-23631

Prototype Pollution leading to Remote Code Execution in superjson

CVSS 9.1 CRITICALEPSS 2.3%CWE-94

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.1EPSS 2.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

09 Feb 2022Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

blitz-js · superjson

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References

https://github.com/advisories/GHSA-5888-ffcr-r425 https://github.com/blitz-js/superjson/security/advisories/GHSA-5888-ffcr-r425 https://www.sonarsource.com/blog/blitzjs-prototype-pollution/