CVE-2022-2421

Socket.io - Improper type validation in attachment parsing

Description

Due to improper type validation in attachment parsing the Socket.io js library, it is possible to overwrite the _placeholder object which allows an attacker to place references to functions at arbitrary places in the resulting query object.

Category

10.0
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.91% Top 30%
Third-Party Advisory divd.nl Third-Party Advisory divd.nl
Affected: Socket.io Socket.io-Parser
Published at:
Updated at:

References

Link Tags
https://csirt.divd.nl/CVE-2022-2421 third party advisory
https://csirt.divd.nl/DIVD-2022-00045 third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-2421?
CVE-2022-2421 has been scored as a critical severity vulnerability.
How to fix CVE-2022-2421?
To fix CVE-2022-2421, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-2421 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-2421 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-2421?
CVE-2022-2421 affects Socket.io Socket.io-Parser.
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