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CVE-2026-33661 WeChat Pay callback signature verification bypassed when Host header is localhost

🗓️ 26 Mar 2026 21:05:22Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 1 Views

WeChat Pay callback signature bypass when Host is localhost enables forged payments before 3.7.20.

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10 Apr 2026 05:43Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.6
EPSS0.00016
1