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CVE-2020-28273

31
FAUCET Score

CVE-2020-28273 is a critical prototype pollution vulnerability affecting set-in versions 1.0.0 through 2.0.0. This flaw allows an unauthenticated attacker to remotely trigger a denial of service and potentially achieve remote code execution. With a CVSS score of 9.8, it presents a severe risk due to its network-based attack vector and low attack complexity. While there is no evidence of active exploitation or public exploit code, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.0, <= 2.0.0CPE matchmatch criteria
cpe:2.3:a:set-in_project:set-in:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.88%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0388 is in the 82nd percentile among its peer group of 36,835 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: set-inFixed in: 2.0.1

Vendor Advisories (1)

npmGHSA-qr4p-c9wr-phr6critical

Prototype pollution in set-in

Mar 19, 2021

References

github.com / ahdinosaur/set-in/commit/e431effa00195a6f06b111e09733cd1445a91a88
PatchThird Party Advisory
whitesourcesoftware.com / vulnerability-database
Third Party Advisory
whitesourcesoftware.com / vulnerability-database/CVE-2020-28273
ExploitThird Party Advisory