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CVE-2020-28448

29
FAUCET Score

CVE-2020-28448 is a critical prototype pollution vulnerability affecting the multi-ini package prior to version 2.1.1, allowing attackers to manipulate object prototypes by injecting a "proto" object within an array. With a CVSS score of 9.8, this vulnerability is easily exploitable over a network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, the high severity warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.1.1CPE matchmatch criteria
cpe:2.3:a:multi-ini_project:multi-ini:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

5.6MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.2
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.43%
Probability of exploitation in next 30 days
EPSS Percentile
70.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0143 is in the 57th percentile among its peer group of 36,833 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)

npmpatch availablevia ghsa
Product: multi-iniFixed in: 2.1.1

Vendor Advisories (1)

npmGHSA-g78f-549w-c354critical

Prototype Pollution in multi-ini

Apr 13, 2021

References

github.com / evangelion1204/multi-ini/pull/37
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JS-MULTIINI-1048969
ExploitThird Party Advisory