github - ghsa-95jq-xph2-cx9h

GHSA-95JQ-XPH2-CX9H

Vulnerability from github – Published: 2025-07-26 00:30 – Updated: 2025-07-29 19:09

Summary

Linkify Allows Prototype Pollution & HTML Attribute Injection (XSS)

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.

Severity ?

8.8 (High)


                  
                    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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "linkifyjs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-8101"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-07-29T19:09:33Z",
    "nvd_published_at": "2025-07-25T22:15:25Z",
    "severity": "HIGH"
  },
  "details": "Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027) 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.",
  "id": "GHSA-95jq-xph2-cx9h",
  "modified": "2025-07-29T19:09:33Z",
  "published": "2025-07-26T00:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8101"
    },
    {
      "type": "WEB",
      "url": "https://fluidattacks.com/advisories/charly"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/nfrasser/linkifyjs"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nfrasser/linkifyjs/releases/tag/v4.3.2"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/linkifyjs"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Linkify Allows Prototype Pollution \u0026 HTML Attribute Injection (XSS)"
}

CVE-2025-8101 (GCVE-0-2025-8101)

Vulnerability from cvelistv5 – Published: 2025-07-25 21:52 – Updated: 2025-12-03 21:04

Summary

Severity ?

8.8 (High)


                        
                          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

CWE

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

Assigner

Fluid Attacks

References

URL

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/ta…	patch

Impacted products

	Vendor	Product	Version
	Linkify	Linkify	Affected: 4.3.1 , < 4.3.2 (custom)

Show details on NVD website

JSON

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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-28T14:56:25.596265Z",
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-95JQ-XPH2-CX9H

CVE-2025-8101 (GCVE-0-2025-8101)

Tags

Sightings

Nomenclature