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CVE-2026-40497

🗓️ 21 Apr 2026 01:45:55Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 41 Views🌐 WEB

FreeScout before 1.8.213 is vulnerable to CSS injection via stored style tags in mailbox signatures, enabling token exfiltration.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-40497
21 Apr 202601:45
–attackerkb
circl
Circl
CVE-2026-40497
21 Apr 202603:21
–circl
cnnvd
CNNVD
FreeScout security vulnerabilities
21 Apr 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-40497 FreeScout Vulnerable to CSS Injection via Stored Style Tag in Mailbox Signature (CSRF Token Exfiltration)
21 Apr 202601:45
–cvelist
euvd
EUVD
EUVD-2026-24052
21 Apr 202601:45
–euvd
mend
Mend
CVE-2026-40497
21 Apr 202601:45
–mend
nvd
NVD
CVE-2026-40497
21 Apr 202603:16
–nvd
ptsecurity
Positive Technologies
PT-2026-33912
21 Apr 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-40497: Improper Neutralization of Input During Web Page Generation
21 Apr 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-40497
5 Jun 202619:13
–redhatcve
Rows per page
NVD
Vulners
Node
freescoutfreescoutRange<1.8.213
[
  {
    "vendor": "freescout-help-desk",
    "product": "freescout",
    "versions": [
      {
        "version": "< 1.8.213",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
signaturerequest body/mailbox/settings/{id}Incomplete sanitization of the signature field allows for CSS injection via <style> tags, which can be used to exfiltrate CSRF tokens.CWE-79

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17 Jun 2026 10:45Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.18.1
EPSS0.00243
SSVC
41