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CVE-2026-40566

🗓️ 21 Apr 2026 16:04:35Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 53 Views🌐 WEB

FreeScout before 1.8.213 allows SSRF via IMAP/SMTP test endpoints enabling internal port scanning.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-40566
21 Apr 202616:04
–attackerkb
cnnvd
CNNVD
FreeScout security vulnerabilities
21 Apr 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-40566 FreeScout vulnerable to SSRF via IMAP/SMTP Connection Test Endpoints
21 Apr 202616:04
–cvelist
euvd
EUVD
EUVD-2026-24167
21 Apr 202616:04
–euvd
mend
Mend
CVE-2026-40566
21 Apr 202616:04
–mend
nvd
NVD
CVE-2026-40566
21 Apr 202617:16
–nvd
ptsecurity
Positive Technologies
PT-2026-34010
21 Apr 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-40566: Server-Side Request Forgery (SSRF)
21 Apr 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-40566
5 Jun 202619:27
–redhatcve
vulnrichment
Vulnrichment
CVE-2026-40566 FreeScout vulnerable to SSRF via IMAP/SMTP Connection Test Endpoints
21 Apr 202616:04
–vulnrichment
Vulners
Node
freescoutfreescoutRange<1.8.213
[
  {
    "vendor": "freescout-help-desk",
    "product": "freescout",
    "versions": [
      {
        "version": "< 1.8.213",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
in_serverquery param/fetch_testSSRF in the IMAP/SMTP connection test functionality where admin-configured server and port values are passed to fsockopen() without validation.CWE-918
in_portquery param/fetch_testSSRF in the IMAP/SMTP connection test functionality where admin-configured server and port values are passed to fsockopen() without validation.CWE-918
out_serverquery param/fetch_testSSRF in the IMAP/SMTP connection test functionality where admin-configured server and port values are passed to fsockopen() without validation.CWE-918
out_portquery param/fetch_testSSRF in the IMAP/SMTP connection test functionality where admin-configured server and port values are passed to fsockopen() without validation.CWE-918
in_serverquery param/send_testSSRF in the IMAP/SMTP connection test functionality where admin-configured server and port values are passed to fsockopen() without validation.CWE-918
in_portquery param/send_testSSRF in the IMAP/SMTP connection test functionality where admin-configured server and port values are passed to fsockopen() without validation.CWE-918
out_serverquery param/send_testSSRF in the IMAP/SMTP connection test functionality where admin-configured server and port values are passed to fsockopen() without validation.CWE-918
out_portquery param/send_testSSRF in the IMAP/SMTP connection test functionality where admin-configured server and port values are passed to fsockopen() without validation.CWE-918
in_serverquery param/imap_foldersSSRF in the IMAP/SMTP connection test functionality where admin-configured server and port values are passed to fsockopen() without validation.CWE-918
in_portquery param/imap_foldersSSRF in the IMAP/SMTP connection test functionality where admin-configured server and port values are passed to fsockopen() without validation.CWE-918
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17 Jun 2026 10:45Current
6Medium risk
Vulners AI Score6
CVSS 3.14.1
EPSS0.00291
SSVC
53