CVE-2026-33661

Pay is an open-source payment SDK extension package for various Chinese payment services. Prior to version 3.7.20, the verifywechatsign function in src/Functions.php unconditionally skips all signature verification when the PSR-7 request reports localhost as the host. An attacker can exploit this...

CVE-2026-33661

Pay is an open-source payment SDK extension package for various Chinese payment services. Prior to version 3.7.20, the verifywechatsign function in src/Functions.php unconditionally skips all signature verification when the PSR-7 request reports localhost as the host. An attacker can exploit this...

pay 安全漏洞

Pay is a PHP payment development tool developed by Yansongda’s individual developers, supporting multiple payment channels. Versions of Pay prior to 3.7.20 contained security vulnerabilities. These vulnerabilities stemmed from the verifywechatsign function, which unconditionally skipped signature...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the verifywechatsign function. An attacker can cause unauthorized order status changes by sending a crafted HTTP request with a Host: localhost header, which bypasses signature verification and allows forging...