CVE-2021-23663 Prototype Pollution
Prototype pollution in the deepmerge function allows attackers to modify object prototypes, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-23663?
CVE-2021-23663 is a medium-severity vulnerability in sey, published on 10 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
All versions of package sey are vulnerable to Prototype Pollution via the deepmerge() function.
Weakness: CWE-1321
Which versions are affected by CVE-2021-23663?
2 open source packages ship an affected version, including sey. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
sey npm | All versions to 0.3.0 | None |
sey npm | All versions to 0.3.0 | None |
Products include Sey Project Sey.
How do I fix CVE-2021-23663?
No fix has been published for CVE-2021-23663 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-23663 being exploited?
There is no known exploitation of CVE-2021-23663 in the wild and no public exploit code.
Sources
Also known as GHSA-wjpc-cgvw-xx23.