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CVE-2025-8101

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Date: July 25, 2025

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.

Severity Score

Related Resources (6)

https://github.com/nfrasser/linkifyjs/releases/tag/v4.3.2
https://fluidattacks.com/advisories/charly
https://nvd.nist.gov/vuln/detail/CVE-2025-8101
https://github.com/nfrasser/linkifyjs
https://www.npmjs.com/package/linkifyjs
https://www.mend.io/vulnerability-database/CVE-2025-8101

Severity Score

Weakness Type (CWE)

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CWE-1321

Top Fix

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Upgrade Version

Upgrade to version linkifyjs - 4.3.2;linkifyjs - 4.3.2;https://github.com/nfrasser/linkifyjs.git - v4.3.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): HIGH
Availability (A): LOW

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