CVE-2020-7781
Command Injection
This affects the package connection-tester before 0.2.1. The injection point is located in line 15 in index.js. The following PoC demonstrates the vulnerability:
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
CVE List Score used
Command Injection
This affects the package connection-tester before 0.2.1. The injection point is located in line 15 in index.js. The following PoC demonstrates the vulnerability:
- Record
CVE-2020-7781- 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
EUVDEUVD-2020-1508
This affects the package connection-tester before 0.2.1. The injection point is located in line 15 in index.js. The following PoC demonstrates the vulnerability:
- Record
EUVD-2020-1508- 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
- 2026-11-03
GitHub AdvisoriesGHSA-w5mp-8p8w-mhh8
Command injection in connection-tester
This affects the package connection-tester before 0.2.1. The injection point is located in line 15 in index.js. Affected versions of this package are vulnerable to Command Injection
- Record
GHSA-w5mp-8p8w-mhh8- 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-78
- Updated
- 2026-11-02
NVD
This affects the package connection-tester before 0.2.1. The injection point is located in line 15 in index.js. The following PoC demonstrates the vulnerability:
- Record
CVE-2020-7781- 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 - Weakness
- CWE-78
- Updated
- 2026-11-02
OSV
This affects the package connection-tester before 0.2.1. The injection point is located in line 15 in index.js. The following PoC demonstrates the vulnerability:
- Record
CVE-2020-7781- 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-w5mp-8p8w-mhh8
Command injection in connection-tester
This affects the package connection-tester before 0.2.1. The injection point is located in line 15 in index.js. Affected versions of this package are vulnerable to Command Injection
- Record
GHSA-w5mp-8p8w-mhh8- 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-78
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
connection-testernpm |
before 0.2.1 | 0.2.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-7781 is a critical vulnerability (CVSS 9.8) in Connection-tester Project Connection-tester, published December 16, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.99%, the 80th percentile. Fixed in connection-tester 0.2.1.