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CVE-2022-42743

17
FAUCET Score

CVE-2022-42743 describes a prototype pollution vulnerability in deep-parse-json version 1.0.2, allowing an unauthenticated attacker to modify or add properties to an object due to improper validation of JSON keys, specifically the '__proto__' property. Rated Medium (CVSS 5.3), this vulnerability has a low attack complexity and no user interaction required, potentially leading to low integrity impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.2CPE matchmatch criteria
cpe:2.3:a:deep-parse-json_project:deep-parse-json:1.0.2:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 29th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Advisories (1)

npmGHSA-ff9j-pwxg-q5p2medium

deep-parse-json vulnerable to Prototype Pollution

Nov 4, 2022

References

fluidattacks.com / advisories/buuren
ExploitThird Party Advisory
github.com / sibu-github/deep-parse-json
Product