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CVE-2026-40590

🗓️ 21 Apr 2026 16:52:27Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 9 Views🌐 WEB

CVE-2026-40590: FreeScout ajax create reuses a hidden customer when emails match, allowing attacker-controlled field filling.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-40590
21 Apr 202616:52
attackerkb
CNNVD
FreeScout 安全漏洞
21 Apr 202600:00
cnnvd
Cvelist
CVE-2026-40590 FreeScout's Customer AJAX Create Modifies Hidden Existing Customer
21 Apr 202616:52
cvelist
EUVD
EUVD-2026-24185
21 Apr 202616:52
euvd
NVD
CVE-2026-40590
21 Apr 202617:16
nvd
Positive Technologies
PT-2026-34025
21 Apr 202600:00
ptsecurity
RedhatCVE
CVE-2026-40590
5 Jun 202619:26
redhatcve
Vulnrichment
CVE-2026-40590 FreeScout's Customer AJAX Create Modifies Hidden Existing Customer
21 Apr 202616:52
vulnrichment
Vulners
[
  {
    "vendor": "freescout-help-desk",
    "product": "freescout",
    "versions": [
      {
        "version": "< 1.8.214",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
actionrequest body/customers/ajaxExploitable endpoint allows creating or reusing a hidden customer when email is duplicated; lacks proper unique-email validation and fills attacker-controlled fields into the customer profile.CWE-639
emailrequest body/customers/ajaxExploitable endpoint allows creating or reusing a hidden customer when email is duplicated; lacks proper unique-email validation and fills attacker-controlled fields into the customer profile.CWE-639
namerequest body/customers/ajaxExploitable endpoint allows creating or reusing a hidden customer when email is duplicated; lacks proper unique-email validation and fills attacker-controlled fields into the customer profile.CWE-639
phonerequest body/customers/ajaxExploitable endpoint allows creating or reusing a hidden customer when email is duplicated; lacks proper unique-email validation and fills attacker-controlled fields into the customer profile.CWE-639
addressrequest body/customers/ajaxExploitable endpoint allows creating or reusing a hidden customer when email is duplicated; lacks proper unique-email validation and fills attacker-controlled fields into the customer profile.CWE-639
other_profile_fieldsrequest body/customers/ajaxExploitable endpoint allows creating or reusing a hidden customer when email is duplicated; lacks proper unique-email validation and fills attacker-controlled fields into the customer profile.CWE-639

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17 Jun 2026 10:45Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.3
EPSS0.00214
SSVC
9