CVE-2020-4059: Command Injection in mversion

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-06-18 · updated 2026-06-17
Weakness: CWE-77

Description

In mversion before 2.0.0, there is a command injection vulnerability. This issue may lead to remote code execution if a client of the library calls the vulnerable method with untrusted input. This vulnerability is patched by version 2.0.0. Previous releases are deprecated in npm. As a workaround, make sure to escape git commit messages when using the commitMessage option for the update function.

Affected products

mversion: before 2.0.0 — fixed in 2.0.0

How to fix

Upgrade to a fixed version: mversion 2.0.0. Check the vendor advisory for mitigations.

References

https://github.com/mikaelbr/mversion/commit/6c76c9efd27c7ff5a5c6f187e8b7a435c4722338
https://github.com/mikaelbr/mversion/security/advisories/GHSA-qjg4-w4c6-f6c6
https://github.com/mikaelbr/mversion/commit/6c76c9efd27c7ff5a5c6f187e8b7a435c4722338
https://github.com/mikaelbr/mversion/security/advisories/GHSA-qjg4-w4c6-f6c6

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