Description
This affects all versions of package mout. The deepFillIn function can be used to 'fill missing properties recursively', while the deepMixIn 'mixes objects into the target object, recursively mixing existing child objects as well'. In both cases, the key used to access the target object recursively is not checked, leading to a Prototype Pollution.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| snykCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Prototype Pollution
- CWE-1321 (opens in a new tab)All about CWE-1321 and its CVEs
Affected products
mout
- affected < unspecified
Affected packages
From reviewed advisories of the GitHub Advisory Database.
References (5)
- https://snyk.io/vuln/SNYK-JS-MOUT-1014544 (opens in a new tab)x_refsource_MISCx_transferred
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1050373 (opens in a new tab)x_refsource_MISCx_transferred
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1050374 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/mout/mout/blob/master/src/object/deepFillIn.js (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/mout/mout/blob/master/src/object/deepMixIn.js (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-pc58-wgmc-hfjr (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-7792)Record last updated .