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CVE-2026-18756

🗓️ 19 Aug 2026 14:46:25Reported by Fluid AttacksType 
cve
 cve
🔗 web.nvd.nist.gov👁 7 Views

Reflected XSS in HumHub 1.18.4 via options query-string parameter in space membership-request form.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-18756 HumHub Community Edition 1.18.4-pl1 - Reflected XSS in Space membership request button rendering
19 Aug 202614:46
cvelist
euvd
EUVD
EUVD-2026-62500
19 Aug 202614:46
euvd
nvd
NVD
CVE-2026-18756
19 Aug 202615:16
nvd
ptsecurity
Positive Technologies
PT-2026-78432
19 Aug 202600:00
ptsecurity
CNA
Node
OR
humhubhumhubMatch1.18.4windows
humhubhumhubMatch1.18.4macos
humhubhumhubMatch1.18.4linux
[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "Windows",
      "MacOS",
      "Linux"
    ],
    "product": "HumHub",
    "repo": "https://github.com/humhub/humhub",
    "vendor": "HumHub",
    "versions": [
      {
        "status": "affected",
        "version": "1.18.4"
      }
    ]
  }
]

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19 Aug 2026 15:16Current
4.9Medium risk
Vulners AI Score4.9
CVSS 47.2
7