{"id":"CVE-2025-66458","state":"PUBLISHED","title":"Lookyloo has multiple XSS due to unsafe use of f-strings in Markup","description":"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.","publishedAt":"2025-12-02T18:30:56.629Z","updatedAt":"2025-12-02T19:26:59.655Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["Lookyloo lookyloo"],"affected":[{"vendor":"Lookyloo","product":"lookyloo","versions":[{"version":"< 1.35.3","status":"affected"}]}],"references":["https://github.com/Lookyloo/lookyloo/security/advisories/GHSA-58h2-652v-gq87","https://github.com/Lookyloo/lookyloo/commit/b6ee2fee0afff0b35f37dd891bbce9d53ed8a290"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:09:56.034Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/66xxx/CVE-2025-66458.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-66458","state":"PUBLISHED","datePublished":"2025-12-02T18:30:56.629Z","dateUpdated":"2025-12-02T19:26:59.655Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-12-01T22:51:54.581Z"},"containers":{"cna":{"title":"Lookyloo has multiple XSS due to unsafe use of f-strings in Markup","descriptions":[{"lang":"en","value":"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":[{"vendor":"Lookyloo","product":"lookyloo","versions":[{"version":"< 1.35.3","status":"affected"}]}],"references":[{"url":"https://github.com/Lookyloo/lookyloo/security/advisories/GHSA-58h2-652v-gq87","name":"https://github.com/Lookyloo/lookyloo/security/advisories/GHSA-58h2-652v-gq87","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/Lookyloo/lookyloo/commit/b6ee2fee0afff0b35f37dd891bbce9d53ed8a290","name":"https://github.com/Lookyloo/lookyloo/commit/b6ee2fee0afff0b35f37dd891bbce9d53ed8a290","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-12-02T18:30:56.629Z"},"source":{"advisory":"GHSA-58h2-652v-gq87","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-02T19:26:42.155200Z","id":"CVE-2025-66458","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-12-02T19:26:59.655Z"}}]}}}