PT-2025-48751 · Lookyloo · Lookyloo

Published 2025-12-02 · Updated 2025-12-05 · CVE-2025-66458

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Lookyloo versions prior to 1.35.3

Description Lookyloo is a web interface used to capture website pages and display a tree of domains that interact with each other. Prior to version 1.35.3, multiple Cross-Site Scripting (XSS) issues exist due to the unsafe use of f-strings in Markup. Exploitation requires a malicious third-party server responding with a JSON document containing JavaScript code within a script element.

Recommendations Update to version 1.35.3 or later.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-66458

GHSA-58H2-652V-GQ87

Affected Products

Lookyloo

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66458.json · Exploit
• https://github.com/Lookyloo/lookyloo/commit/b6ee2fee0afff0b35f37dd891bbce9d53ed8a290 · Patch
• https://github.com/Lookyloo/lookyloo/security/advisories/GHSA-58h2-652v-gq87 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-66458 · Security Note
• https://osv.dev/vulnerability/CVE-2025-66458 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1996126713105748331 · Twitter Post
• https://t.me/CVEtracker/38710 · Telegram Post
• https://twitter.com/dailycve/status/1996996457149440489 · Twitter Post