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CVE-2026-40567: Improper Encoding or Escaping of Output

🗓️ 21 Apr 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

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 nam...

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-40567
21 Apr 202616:06
–attackerkb
cnnvd
CNNVD
FreeScout 安全漏洞
21 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-40567
21 Apr 202616:06
–cve
cvelist
Cvelist
CVE-2026-40567 FreeScout has HTML Injection in Outgoing Emails via Unsanitized Customer Name in Signature Variables
21 Apr 202616:06
–cvelist
euvd
EUVD
EUVD-2026-24168
21 Apr 202616:06
–euvd
nvd
NVD
CVE-2026-40567
21 Apr 202617:16
–nvd
ptsecurity
Positive Technologies
PT-2026-34011
21 Apr 202600:00
–ptsecurity
redhatcve
RedhatCVE
CVE-2026-40567
5 Jun 202619:26
–redhatcve
vulnrichment
Vulnrichment
CVE-2026-40567 FreeScout has HTML Injection in Outgoing Emails via Unsanitized Customer Name in Signature Variables
21 Apr 202616:06
–vulnrichment

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22 Apr 2026 00:00Current
CVSS 3.15.8
EPSS0.00242
SSVC
0