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Vulnerability Intelligence

CVE-2025-8101

HIGH8.8

Linkify 4.3.1 - Prototype Pollution & HTML Attribute Injection (XSS)

Published Jul 25, 2025

Modified 1 months ago

No fix available

Details

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.

References

ADVISORYhttps://fluidattacks.com/advisories/charly WEBhttps://github.com/nfrasser/linkifyjs FIXhttps://github.com/nfrasser/linkifyjs/releases/tag/v4.3.2 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-8101 WEBhttps://www.npmjs.com/package/linkifyjs

CVSS Analysis

CVSS v4.0

8.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

LowVC:L

Vuln. Integrity

HighVI:H

Vuln. Availability

LowVA:L

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

8.8/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

Weakness Type (CWE)

Input Validation

Prototype Pollution

Ecosystems

Timeline

PublishedJul 25, 2025

ModifiedDec 3, 2025

CVE-2025-8101 | Mondoo Vulnerability Intelligence