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CVE-2026-48747: Mailomat Mailer Webhook Parser Reads the HMAC Algorithm from the Request: Signature Algorithm Downgrade

🗓️ 01 Jan 1970 00:00:00Reported by OpenJS FoundationType 
friendsofphp
 friendsofphp
🔗 github.com👁 10 Views

CVE-2026-48747 allows signature algorithm downgrade via webhook parser reading HMAC from the request.

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26 May 2026 08:00Current
5.8Medium risk
Vulners AI Score5.8
10