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CVE-2025-8101

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:98b2f438abf903e6bb9c032a615c62ea8b0daaab90fa9b96b4e612d5830fd78b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"collectionURL":"https://registry.npmjs.org","defaultStatus":"unaffected","packageName":"linkifyjs","product":"Linkify","vendor":"Linkify","versions":[{"lessThan":"4.3.2","status":"affected","version":"4.3.1","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7343cae58700180d8c288dbde44c6899bd0ed89634cb6b3c08c4f169dbf67018 · sha256:59149e6ce99b41bc… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.8,"baseSeverity":"HIGH","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","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"HIGH"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7343cae58700180d8c288dbde44c6899bd0ed89634cb6b3c08c4f169dbf67018 · sha256:59149e6ce99b41bc… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-1321","description":"CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7343cae58700180d8c288dbde44c6899bd0ed89634cb6b3c08c4f169dbf67018 · sha256:59149e6ce99b41bc… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["third-party-advisory"],"url":"https://fluidattacks.com/advisories/charly"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7343cae58700180d8c288dbde44c6899bd0ed89634cb6b3c08c4f169dbf67018 · sha256:59149e6ce99b41bc… · /containers/cna/references/0
{"tags":["product"],"url":"https://github.com/nfrasser/linkifyjs"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7343cae58700180d8c288dbde44c6899bd0ed89634cb6b3c08c4f169dbf67018 · sha256:59149e6ce99b41bc… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/nfrasser/linkifyjs/releases/tag/v4.3.2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7343cae58700180d8c288dbde44c6899bd0ed89634cb6b3c08c4f169dbf67018 · sha256:59149e6ce99b41bc… · /containers/cna/references/3
{"tags":["product"],"url":"https://www.npmjs.com/package/linkifyjs"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7343cae58700180d8c288dbde44c6899bd0ed89634cb6b3c08c4f169dbf67018 · sha256:59149e6ce99b41bc… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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