CVE-2020-28280
Prototype pollution vulnerability in 'predefine'
Prototype pollution vulnerability in 'predefine' versions 0.0.0 through 0.1.2 allows an attacker to cause a denial of service and may lead to remote code execution.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Prototype pollution vulnerability in 'predefine' versions 0.0.0 through 0.1.2 allows an attacker to cause a denial of service and may lead to remote code execution.
- Record
CVE-2020-28280- 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 - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Prototype pollution vulnerability in 'predefine' versions 0.0.0 through 0.1.2 allows an attacker to cause a denial of service and may lead to remote code execution.
- Record
CVE-2020-28280- Updated
- 2026-11-02
EUVDEUVD-2021-2233 No score
Prototype pollution vulnerability in 'predefine' versions 0.0.0 through 0.1.2 allows an attacker to cause a denial of service and may lead to remote code execution.
- Record
EUVD-2021-2233- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mx3x-ghqm-r43h
Prototype pollution vulnerability in 'predefine'
Prototype pollution vulnerability in 'predefine' versions 0.0.0 through 0.1.2 allows an attacker to cause a denial of service and may lead to remote code execution.
- Record
GHSA-mx3x-ghqm-r43h- 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-1333
- Updated
- 2026-11-02
OSV
Prototype pollution vulnerability in 'predefine' versions 0.0.0 through 0.1.2 allows an attacker to cause a denial of service and may lead to remote code execution.
- Record
CVE-2020-28280- 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-mx3x-ghqm-r43h
Prototype pollution vulnerability in 'predefine'
Prototype pollution vulnerability in 'predefine' versions 0.0.0 through 0.1.2 allows an attacker to cause a denial of service and may lead to remote code execution.
- Record
GHSA-mx3x-ghqm-r43h- 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-1333
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
predefinenpm |
before 0.1.3 | 0.1.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| 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-2020-28280 is a critical vulnerability (CVSS 9.8) in Predefine Project Predefine, published December 29, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.07%, the 87th percentile. Fixed in predefine 0.1.3.
References
github.com/bigpipe/predefine/blob/238137e3d1b8288ff5d7529c3cbcdd371888c26b/index.js
whitesourcesoftware.com/vulnerability-database/CVE-2020-28280
nvd.nist.gov/vuln/detail/CVE-2020-28280