CVE-2020-7792: This affects all versions of package mout

This week

HIGH 7.5REMOTEMITIGATE

CVE-2020-7792 is a high-severity flaw (CVSS 7.5) affecting mout. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-1321
Published	2020-12-11
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: moutjs

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-12-11 11:15 UTCPublished CVE record published
2026-06-17 03:25 UTCUpdated Record last modified

moutjs mout MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls mout

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-7792?

mout: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-7792 being exploited?

CVE-2020-7792 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-7792 affect?

CVE-2020-7792 affects mout. Severity is high (CVSS 7.5). 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

How urgent is CVE-2020-7792?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-21213 HIGH 7.5 MITIGATE This affects all versions of package mout

References

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