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CVE-2021-23507

31
FAUCET Score

CVE-2021-23507 is a critical Prototype Pollution vulnerability affecting the 'object-path-set' package prior to version 1.0.2, specifically through its 'setPath' method. This flaw allows an attacker to manipulate object prototypes, stemming from an incomplete previous fix. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low attack complexity, and potential for high impact on confidentiality, integrity, and availability. Currently, there is 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:skratchdot:object-path-set:*:*:*:*:*:*:*:*

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
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0213 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 (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: object-path-setFixed in: 1.0.2

Vendor Advisories (1)

npmGHSA-h6pr-c536-6rjghigh

Prototype Pollution in object-path-set

Feb 5, 2022

References

github.com / skratchdot/object-path-set/blob/577f5299fed15bb9edd11c940ff3cf0b9f4748d5/index.js%23L8
Broken Link
github.com / skratchdot/object-path-set/commit/2d67a714159c4099589b6661fa84e6d2adc31761
PatchThird Party Advisory
snyk.io / blog/remediate-javascript-type-confusion-bypassed-input-validation
Third Party Advisory
snyk.io / vuln/SNYK-JS-OBJECTPATHSET-2388576
ExploitThird Party Advisory