{"id":"CVE-2026-40567","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-40567","generatedAt":"2026-10-28T11:55:39.785Z","title":"Prior to version 1.8.213, an unauthenticated attacker can inject arbitrary HTML into outgoing emails generated by FreeScout by sending an email with a crafted From display name.","description":"FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, an unauthenticated attacker can inject arbitrary HTML into outgoing emails generated by FreeScout by sending an email with a crafted From display name. The name is stored in the database without sanitization and rendered unescaped into outgoing reply emails via the `{%customer.fullName%}` signature variable. This allows embedding phishing links, tracking pixels, and spoofed content inside legitimate support emails sent from the organization's address. Version 1.8.213 fixes the issue.","published":"2026-04-21T17:16:55.000Z","lastModified":"2026-06-17T10:45:28.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N"},"cwe":["CWE-116"],"affected":[],"epss":{"score":0.00242,"percentile":0.15339,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/freescout-help-desk/freescout/commit/9131b16f80eade81002cb9809a2603f6b61981cf","source":"security-advisories@github.com"},{"url":"https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213","source":"security-advisories@github.com"},{"url":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-q8v4-v62h-5528","source":"security-advisories@github.com"},{"url":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-q8v4-v62h-5528","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-40567","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}