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CVE-2020-7792

20
FAUCET Score

CVE-2020-7792 is a Prototype Pollution vulnerability affecting all versions of the 'mout' package, specifically within its deepFillIn and deepMixIn functions. An attacker can exploit this by manipulating object prototypes due to unchecked keys, leading to a high-severity denial-of-service impact. While no public exploits or active exploitation have been observed, and community discussion is minimal, the vulnerability carries a CVSS score of 7.5, indicating a significant risk if exploited.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:moutjs:mout:*:*:*:*:*: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
2.12%
Probability of exploitation in next 30 days
EPSS Percentile
79.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0212 is in the 64th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: moutFixed in: 1.2.3

Vendor Advisories (1)

npmGHSA-pc58-wgmc-hfjrhigh

Prototype Pollution in mout

Feb 9, 2022

References

github.com / mout/mout/blob/master/src/object/deepFillIn.js
ExploitThird Party Advisory
github.com / mout/mout/blob/master/src/object/deepMixIn.js
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARS-1050374
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSNPM-1050373
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JS-MOUT-1014544
ExploitThird Party Advisory