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.
Scores
CVSS v4
8.8
EPSS
0.0017
EPSS Percentile
37.3%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1321
Status
published
Products (2)
Linkify/Linkify
4.3.1 - 4.3.2
npm/linkifyjs
0 - 4.3.2npm
Published
Jul 25, 2025
Tracked Since
Feb 18, 2026