{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-09-23T05:29:17.235","vulnerabilities":[{"cve":{"id":"CVE-2025-53480","sourceIdentifier":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","published":"2025-07-08T15:15:29.720","lastModified":"2026-06-17T09:38:17.197","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"The CheckUser extension’s Special:Investigate page has a vulnerability in the Account information tab, where specific internationalized messages are rendered without proper escaping. Attackers can exploit this by appending ?uselang=x-xss to the URL, causing reflected XSS when the UI renders affected message keys.\n\n\n\n\nThis issue affects Mediawiki - CheckUser extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2."},{"lang":"es","value":"La página \"Especial:Investigar\" de la extensión CheckUser presenta una vulnerabilidad en la pestaña \"Información de la cuenta\", donde se muestran mensajes internacionalizados específicos sin el escape adecuado. Los atacantes pueden explotar esto añadiendo \"?uselang=x-xss\" a la URL, lo que provoca un XSS reflejado cuando la interfaz de usuario muestra las claves de los mensajes afectados. Este problema afecta a Mediawiki - extensión CheckUser: desde la versión 1.39.X hasta la 1.39.13, desde la versión 1.42.X hasta la 1.42.7, desde la versión 1.43.X hasta la 1.43.2."}],"affected":[{"source":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","affectedData":[{"vendor":"Wikimedia Foundation","product":"Mediawiki - CheckUser extension","defaultStatus":"unaffected","versions":[{"version":"1.39.x","lessThan":"1.39.13","versionType":"semver","status":"affected"},{"version":"1.42.x","lessThan":"1.42.7","versionType":"semver","status":"affected"},{"version":"1.43.x","lessThan":"1.43.2","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.3,"impactScore":2.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-07-08T20:44:35.609306Z","id":"CVE-2025-53480","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","type":"Secondary","description":[{"lang":"en","value":"CWE-79"}]}],"references":[{"url":"https://gerrit.wikimedia.org/r/q/I777fc55fef15c3b00df0db268af2b64cb2d6e381","source":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"},{"url":"https://phabricator.wikimedia.org/T394700","source":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"}]}}]}