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CVE-2021-23574

32
FAUCET Score

CVE-2021-23574 is a critical prototype pollution vulnerability affecting all versions of the js-data package, stemming from an incomplete fix for CVE-2020-28442. With a CVSS score of 9.8, it presents a high risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered significant community discussion with over 10 mentions, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.0.11CPE matchmatch criteria
cpe:2.3:a:js-data:js-data:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.10%
Probability of exploitation in next 30 days
EPSS Percentile
79.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0210 is in the 69th percentile among its peer group of 36,862 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

npmGHSA-c6h4-gc3f-hgjqcritical

Prototype Pollution in js-data

Jan 6, 2022

References

github.com / js-data/js-data/blob/master/dist/js-data.js%23L472
Broken LinkThird Party Advisory
github.com / js-data/js-data/issues/576
Issue TrackingPatchThird Party Advisory
github.com / js-data/js-data/issues/577
Issue TrackingPatchThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSBOWER-2320790
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSNPM-2320791
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JS-JSDATA-1584361
ExploitThird Party Advisory