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CVE-2021-23702

30
FAUCET Score

CVE-2021-23702 describes a critical Prototype Pollution vulnerability affecting the 'object-extend' package, versions 0.0.0 and earlier. This flaw allows an unauthenticated attacker to remotely execute arbitrary code, leading to complete compromise of confidentiality, integrity, and availability, as indicated by its CVSS score of 9.8. Despite its severe impact, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.5.0CPE matchmatch criteria
cpe:2.3:a:object-extend_project:object-extend:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

7.6HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.38%
Probability of exploitation in next 30 days
EPSS Percentile
69.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0138 is in the 56th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

npmGHSA-m639-9whg-fw97critical

Prototype Pollution in object-extend

Feb 19, 2022

References

snyk.io / vuln/SNYK-JS-OBJECTEXTEND-2401470
ExploitThird Party Advisory