{"apiVersion":"1.0","identifier":"CVE-2026-74998","description":"In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, responses from the CSS (Cascading Style Sheets) proxy were not validated, which may result in information disclosure or XSS (cross-site scripting) via MIME sniffing.","publishedAt":"2026-08-17T13:16:54","lastModifiedAt":"2026-08-17T16:17:51","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74998","cvssScore":7.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","epssProbability":0.00268,"riskScore":0.74,"affectedProduct":"Roundcube Webmail","affectedVersions":"<1.6.18, <1.7.3","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74998","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74998","en":"https://www.redsauce.net/en/cves/CVE-2026-74998","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74998","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74998","de":"https://www.redsauce.net/de/cves/CVE-2026-74998","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74998","el":"https://www.redsauce.net/el/cves/CVE-2026-74998"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74998"}}