{"id":"CVE-2025-66458","summary":"Lookyloo has multiple XSS due to unsafe use of f-strings in Markup","details":"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.","aliases":["GHSA-58h2-652v-gq87"],"modified":"2026-04-02T13:01:55.336869Z","published":"2025-12-02T18:30:56.629Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66458.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-79"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66458.json"},{"type":"ADVISORY","url":"https://github.com/Lookyloo/lookyloo/security/advisories/GHSA-58h2-652v-gq87"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66458"},{"type":"FIX","url":"https://github.com/Lookyloo/lookyloo/commit/b6ee2fee0afff0b35f37dd891bbce9d53ed8a290"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/lookyloo/lookyloo","events":[{"introduced":"0"},{"fixed":"841a5b5d263e024be242df3b6e5efca7a08016d7"}]}],"versions":["v0.6","v1.0","v1.1","v1.10","v1.10.0","v1.11.0","v1.12.0","v1.13.0","v1.14.0","v1.15.0","v1.16.0","v1.17.0","v1.18.0","v1.19.0","v1.2","v1.20.0","v1.21.0","v1.22.0","v1.23.0","v1.24.0","v1.25.0","v1.26.0","v1.26.1","v1.27.0","v1.28.0","v1.28.1","v1.29.0","v1.3","v1.30.0","v1.31.0","v1.32.0","v1.33.0","v1.34.0","v1.35.0","v1.35.1","v1.35.2","v1.4.0","v1.5.0","v1.6.0","v1.7.0","v1.8.0","v1.9.0","v1.9.1","v1.9.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66458.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}]}