CVE-2022-2421

10.0 CRITICAL
Published: October 26, 2022 Modified: February 06, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://csirt.divd.nl/CVE-2022-2421
Source: csirt@divd.nl
Third Party Advisory
https://csirt.divd.nl/DIVD-2022-00045
Source: csirt@divd.nl
Third Party Advisory
https://csirt.divd.nl/CVE-2022-2421
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://csirt.divd.nl/DIVD-2022-00045
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
10.0 / 10.0
EPSS (Exploit Probability)
1.1%
78th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

socket