CVE-2020-28471
Prototype Pollution
This affects the package properties-reader before 2.2.0.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Prototype Pollution
This affects the package properties-reader before 2.2.0.
- Record
CVE-2020-28471- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P - Updated
- 2026-11-02
EUVDEUVD-2022-6369
This affects the package properties-reader before 2.2.0.
- Record
EUVD-2022-6369- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jxvf-m3x5-mxwq
Properties-Reader before v2.2.0 vulnerable to prototype pollution
Properties-Reader prior to version 2.2.0 is vulnerable to prototype pollution. Version 2.2.0 contains a patch for this issue.
- Record
GHSA-jxvf-m3x5-mxwq- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
NVD
This affects the package properties-reader before 2.2.0.
- Record
CVE-2020-28471- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSV
This affects the package properties-reader before 2.2.0.
- Record
CVE-2020-28471- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-jxvf-m3x5-mxwq
Properties-Reader before v2.2.0 vulnerable to prototype pollution
Properties-Reader prior to version 2.2.0 is vulnerable to prototype pollution. Version 2.2.0 contains a patch for this issue.
- Record
GHSA-jxvf-m3x5-mxwq- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
properties-readernpm |
before 2.2.0 | 2.2.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-28471 is a high vulnerability (CVSS 7.3) in Properties-reader Project Properties-reader, published July 19, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.45%, the 73rd percentile. Fixed in properties-reader 2.2.0.
References
security.snyk.io/vuln/SNYK-JS-PROPERTIESREADER-1048968
github.com/steveukx/properties/commit/0877cc871db9865f58dd9389ce99e61be05380a5
nvd.nist.gov/vuln/detail/CVE-2020-28471