{"id":"CVE-2026-39991","title":"A cross-site scripting (XSS) vulnerability has been reported to affect Notes Station 3","summary":"A cross-site scripting (XSS) vulnerability has been reported to affect Notes Station 3. If a remote attacker gains a user account, they can then exploit the vulnerability to inject malicious code.\n\nWe have already fixed the vulnerability…","severity":"medium","cvss":4.8,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","cwe":["CWE-79"],"vendor":"QNAP Systems Inc.","product":"Notes Station 3","affected":["notes_station_3 >= 3.9.x < 3.9.12"],"published":"2026-10-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T16:32:39.893","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-39991","references":[{"url":"https://www.qnap.com/en/app-release-notes?keyword=Notes%20Station%203&app=NotesStation3&product-line=nas","label":"security@qnapsecurity.com.tw"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T13:32:48.713397Z"},"cvssSource":"cna","ingestedAt":"2026-10-15T09:59:33.286Z","epss":0.00293,"epssPercentile":0.21752,"slug":"CVE-2026-39991","body":"## Overview\n\nA cross-site scripting (XSS) vulnerability has been reported to affect Notes Station 3. If a remote attacker gains a user account, they can then exploit the vulnerability to inject malicious code.\n\nWe have already fixed the vulnerability in the following version:\nNotes Station 3 3.9.12 and later\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":26.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}