Vulnerability CVE-2021-23568
Published: 2022-01-10

Description:
The package extend2 before 1.0.1 are vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge.

Type:

CWE-1321

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Eggjs -> Extend2 

 References:
https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315
https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60
https://github.com/eggjs/extend2/pull/2
https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8
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