CVE-2020-28503
Prototype Pollution
CRITICAL
9.8
CVSS Score
Published: March 23, 2021 at 10:00 AM UTC
Updated: June 17, 2026 at 03:10 AM UTC
1 product affected across 1 vendorCopy Props
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
Description
The package copy-props before 2.0.5 are vulnerable to Prototype Pollution via the main functionality.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
v < 2.0.5
Affected range stops below 2.0.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/gulpjs/copy-props/pull/7x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1088047x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JS-COPYPROPS-1082870CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-Other
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