Junglewise Threat Intelligence

CVE-2025-66458: Lookyloo is a web interface that allows users to capture a website page and then display a tree of domains that call each other. Prior to 1.

CVE-2025-66458 · Severity: medium · CVSS 6.1 · Published 2025-12-02

Technologies: Lookyloo. Vendors: Lookyloo.

Executive brief

Lookyloo is a web interface that allows users to capture a website page and then display a tree of domains that call each other. Prior to 1.35.3, there are multiple XSS due to unsafe use of f-strings in Markup. The issue requires a malicious 3rd party server responding with a JSON document containing JS code in a script element. This vulnerability is fixed in 1.35.3.

Affected products

  • Lookyloo Lookyloo

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