Prototype pollution in property-expr
Priority MEDIUM 48CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-915.
Summary
The package property-expr before 2.0.3 are vulnerable to Prototype Pollution via the setter function.
Why it matters now
EPSS 0.03376 88th percentileScored 2026-11-07
Fix Fixed property-expr: 2.0.3property-expr (npm): 2.0.3
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | property-expr | before 2.0.3 | 2.0.3 | Patch available | CNA |
| — | property-expr (npm) | before 2.0.3 | 2.0.3 | Patch available | GHSA-6fw4-hr69-g3rv |
- property-expr Vendor— Affected before 2.0.3 Fixed in 2.0.3 Patch available CNA
- property-expr (npm) Vendor— Affected before 2.0.3 Fixed in 2.0.3 Patch available GHSA-6fw4-hr69-g3rv
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:property-expr_project:property-expr:*:*:*:*:*:node.js:*:* | before 2.0.3 | Vulnerable | Property-expr Project |
- cpe:2.3:a:property-expr_project:property-expr:*:*:*:*:*:node.js:*:* Versions before 2.0.3 Vulnerable ·Property-expr Project
Remediation
- Fix · CNA property-expr Fixed in 2.0.3
- Fix · GHSA-6fw4-hr69-g3rv property-expr (npm) Fixed in 2.0.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-7707
- 2026-10-03 Alias added: GHSA-6fw4-hr69-g3rv
References
Sources
- CVE-2020-7707 · CVE Program
- CVE-2020-7707 · NVD
- FIRST EPSS
- GHSA-6fw4-hr69-g3rv · GitHub Advisory Database · CC BY 4.0
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