{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-12739","assignerOrgId":"f45cbf4e-4146-4068-b7e1-655ffc2c548c","state":"PUBLISHED","assignerShortName":"GoogleCloud","dateReserved":"2025-11-05T10:43:57.797Z","datePublished":"2025-11-24T09:11:38.396Z","dateUpdated":"2025-11-24T13:43:54.837Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["Looker-hosted"],"product":"Looker","vendor":"Google Cloud","versions":[{"lessThan":"24.18.201","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.0.79","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.6.66","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.12.7","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.16.0","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.18.0","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.20.0","status":"affected","version":"0","versionType":"custom"}]},{"defaultStatus":"unaffected","platforms":["Self-hosted"],"product":"Looker","vendor":"Google Cloud","versions":[{"lessThan":"24.18.201","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.0.79","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.6.66","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.12.7","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.16.0","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.18.0","status":"affected","version":"0","versionType":"custom"},{"lessThan":"25.20.0","status":"affected","version":"0","versionType":"custom"}]}],"credits":[{"lang":"en","type":"finder","value":"Sivanesh Ashok"},{"lang":"en","type":"finder","value":"Sreeram KL"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"An attacker with viewer permissions in Looker could craft a malicious URL that, when opened by a Looker admin, would execute an attacker-supplied script. Exploitation required at least one Looker extension installed on the instance.

Looker-hosted and Self-hosted were found to be vulnerable.
This issue has already been mitigated for Looker-hosted instances. No user action is required for these.

Self-hosted instances must be upgraded as soon as possible. This vulnerability has been patched in all supported versions of Self-hosted.
The versions below have all been updated to protect from this vulnerability. You can download these versions at the Looker download page https://download.looker.com/:
"}],"value":"An attacker with viewer permissions in Looker could craft a malicious URL that, when opened by a Looker admin, would execute an attacker-supplied script. Exploitation required at least one Looker extension installed on the instance.\n\nLooker-hosted and Self-hosted were found to be vulnerable.\nThis issue has already been mitigated for Looker-hosted instances. No user action is required for these.\n\n\nSelf-hosted instances must be upgraded as soon as possible. This vulnerability has been patched in all supported versions of Self-hosted.\nThe versions below have all been updated to protect from this vulnerability. You can download these versions at the Looker download page https://download.looker.com/ : * 24.18.201+\n * 25.0.79+\n * 25.6.66+\n * 25.12.7+\n * 25.16.0+\n * 25.18.0+\n * 25.20.0+"}],"impacts":[{"capecId":"CAPEC-63","descriptions":[{"lang":"en","value":"CAPEC-63 Cross-Site Scripting (XSS)"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":7.3,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"RED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/U:Red","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"f45cbf4e-4146-4068-b7e1-655ffc2c548c","shortName":"GoogleCloud","dateUpdated":"2025-11-24T09:11:38.396Z"},"references":[{"url":"https://cloud.google.com/support/bulletins#gcp-2025-068"}],"source":{"discovery":"UNKNOWN"},"title":"Cross-Site Scripting (XSS) in Looker's Extension Loader leading to Admin Account Compromise","x_generator":{"engine":"Vulnogram 0.4.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-11-24T13:18:11.065484Z","id":"CVE-2025-12739","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-11-24T13:43:54.837Z"}}]}}