CVE-2025-8101

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

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.

Category

8.8
CVSS
Severity: High
CVSS 4.0 •
EPSS 0.05%
Third-Party Advisory fluidattacks.com
Affected: Linkify Linkify
Published at:
Updated at:

References

Link Tags
https://fluidattacks.com/advisories/charly third party advisory
https://github.com/nfrasser/linkifyjs product
https://www.npmjs.com/package/linkifyjs product
https://github.com/nfrasser/linkifyjs/releases/tag/v4.3.2 patch

Frequently Asked Questions

What is the severity of CVE-2025-8101?
CVE-2025-8101 has been scored as a high severity vulnerability.
How to fix CVE-2025-8101?
To fix CVE-2025-8101, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-8101 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-8101 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-8101?
CVE-2025-8101 affects Linkify Linkify.
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