CVE-2026-40567
mediumpriority · track · 0EPSS 0.002 · 15 %ileEUEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://freescout.net/Patchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-40567cnnvd
- https://github.com/freescout-help-desk/freescout/commit/9131b16f80eade81002cb9809a2603f6b61981cfenisa_euvd
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213enisa_euvd
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-q8v4-v62h-5528enisa_euvd
- https://github.com/freescout-help-desk/freescout/commit/9131b16f80eade81002cb9809a2603f6b61981cfnvd
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213nvd
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-q8v4-v62h-5528nvd
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