{"id":"CVE-2026-104808","title":"DigitalCanion has discovered a stored Cross-Site Scripting (XSS) vulnerability that allows an authenticated malicious user to inject persistent JavaScript or HTML content, resulting in a denial-of-service condition within the web applica…","summary":"DigitalCanion has discovered a stored Cross-Site Scripting (XSS) vulnerability that allows an authenticated malicious user to inject persistent JavaScript or HTML content, resulting in a denial-of-service condition within the web applica…","severity":"low","cvss":1.9,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:P/AU:Y/R:A/V:D/RE:L/U:Amber","cwe":["CWE-79"],"vendor":"Mitel","product":"Mitel MiVoice Office 400","affected":["mivoice_office_400 11.0.96.0"],"published":"2026-10-05","updated":"2026-10-05","sourceUpdated":"2026-10-05T09:17:09.870","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104808","references":[{"url":"https://digitalcanion.com/en/security-research/#vendor=mitel&status=cna","label":"vulnerability@ncsc.ch"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-10-05T09:16:17.872Z","slug":"CVE-2026-104808","body":"## Overview\n\nDigitalCanion has discovered a stored Cross-Site Scripting (XSS) vulnerability that allows an authenticated malicious user to inject persistent JavaScript or HTML content, resulting in a denial-of-service condition within the web application.\n\n\n\n\nThe specific flaw exists within the web portal listening on TCP port 443, under Configuration → Users → Users List. The vulnerability occurs in the “Microsoft Exchange mailbox” field, which fails to properly validate or sanitize user-supplied input before storing and rendering it.\n\n\n\n\nBy injecting malicious JavaScript into this field, an attacker can cause the payload to execute whenever the affected user properties are accessed. This can prevent access to the affected user properties and result in a denial-of-service condition within the application's user-management functionality.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":10,"depthScoreParts":{"impact":10.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}