CVE-2025-8101 | THREATINT

Description

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability in Linkify (linkifyjs) allows XSS Targeting HTML Attributes and Manipulating User-Controlled Variables.This issue affects Linkify: from 4.3.1 before 4.3.2.

Reserved 2025-07-23 | Published 2025-07-25 | Updated 2025-07-25 | Assigner Fluid Attacks

HIGH: 8.8CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N

Problem types

CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Product status

Default status

unaffected

4.3.1 before 4.3.2

affected

References

fluidattacks.com/advisories/charly third-party-advisory

github.com/nfrasser/linkifyjs product

www.npmjs.com/package/linkifyjs product

github.com/nfrasser/linkifyjs/releases/tag/v4.3.2 patch

cve.org (CVE-2025-8101)

nvd.nist.gov (CVE-2025-8101)

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