FKIE_CVE-2025-8101

Vulnerability from fkie_nvd - Published: 2025-07-25 22:15 - Updated: 2025-07-29 14:14
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
Summary
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
help@fluidattacks.comhttps://fluidattacks.com/advisories/charly
help@fluidattacks.comhttps://github.com/nfrasser/linkifyjs
help@fluidattacks.comhttps://github.com/nfrasser/linkifyjs/releases/tag/v4.3.2
help@fluidattacks.comhttps://www.npmjs.com/package/linkifyjs
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "La vulnerabilidad de modificaci\u00f3n incorrectamente controlada de los atributos del prototipo de objeto (\u0027Prototype Pollution\u0027) en Linkify (linkifyjs) permite que los XSS apunten a los atributos HTML y manipule las variables controladas por el usuario. Este problema afecta a Linkify: desde la versi\u00f3n 4.3.1 hasta la 4.3.2."
    }
  ],
  "id": "CVE-2025-8101",
  "lastModified": "2025-07-29T14:14:55.157",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "help@fluidattacks.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-07-25T22:15:25.620",
  "references": [
    {
      "source": "help@fluidattacks.com",
      "url": "https://fluidattacks.com/advisories/charly"
    },
    {
      "source": "help@fluidattacks.com",
      "url": "https://github.com/nfrasser/linkifyjs"
    },
    {
      "source": "help@fluidattacks.com",
      "url": "https://github.com/nfrasser/linkifyjs/releases/tag/v4.3.2"
    },
    {
      "source": "help@fluidattacks.com",
      "url": "https://www.npmjs.com/package/linkifyjs"
    }
  ],
  "sourceIdentifier": "help@fluidattacks.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1321"
        }
      ],
      "source": "help@fluidattacks.com",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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