VulnerabilityAnalyzed
CVE-2022-2421
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.
CRITICAL 9.8EPSS 1.22%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.22% probability · 67th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-89
- Affected
- socket/socket.io-parser
- Source
- csirt@divd.nl
References
- https://csirt.divd.nl/CVE-2022-2421Third Party Advisory
- https://csirt.divd.nl/DIVD-2022-00045Third Party Advisory
- https://csirt.divd.nl/CVE-2022-2421Third Party Advisory
- https://csirt.divd.nl/DIVD-2022-00045Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.