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CVE-2026-34590

🗓️ 02 Apr 2026 17:26:58Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 43 Views🌐 WEB

Postiz allowed blind SSRF via webhook creation due to missing safe URL validation; fixed in 2.21.4.

Related
Detection
Affected
Refs
Paths
NVD
Node
gitroompostizRange<2.21.4
[
  {
    "vendor": "gitroomhq",
    "product": "postiz-app",
    "versions": [
      {
        "version": "< 2.21.4",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
urlrequest body/webhooks/POST /webhooks/ accepts a webhook URL and only validates format with IsUrl(), missing IsSafeWebhookUrl; can lead to blind SSRF via stored internal URLs.CWE-918

Data

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24 Jul 2026 21:10Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.15.4
EPSS0.0033
SSVC
43