mpregular vulnerable to prototype pollution

Description

mpregular is a package that provides a small program development framework based on RegularJS. A Prototype Pollution vulnerability in the mp.addEventHandler function of mpregular version 0.2.0 and before allows attackers to inject properties on Object.

Recommendation

No fix is available yet. Followings are affected versions:

• <= 0.2.0

References

• GHSA-xx4g-r65p-3qf2
• CVE-2025-57323
• CWE-1321
• CAPEC-310
• OWASP 2021-A6

Related Issues

• parse is vulnerable to prototype pollution - CVE-2025-57324
• query-parser-string is vulnerable to Prototype Pollution - CVE-2025-63704
• Parse Javascript SDK vulnerable to prototype pollution in `Parse.Object` and internal APIs - CVE-2025-62374
• counterpart vulnerable to prototype pollution - CVE-2025-57354

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Tags:

npm

mpregular