| 标题 | Zhongbang CRMEB v5.6.3 Authentication Bypass by |
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| 描述 | The remote_register endpoint accepts base64-encoded JSON tokens without verifying JWT signatures. Attackers can forge arbitrary tokens to create unlimited fake accounts or login as any existing user by specifying any uid value.
The root cause is using JWT::urlsafeB64Decode() instead of JWT::decode(). The former only decodes base64 without cryptographic signature verification, while the latter properly validates JWT signatures. |
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| 来源 | ⚠️ https://github.com/foeCat/CVE/blob/main/CRMEB/jwt_auth_bypass/remote_register_jwt_bypass.md |
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| 用户 | Ho Cherry (UID 94105) |
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| 提交 | 2026-01-09 15時53分 (9 月前) |
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| 管理 | 2026-01-19 16時28分 (10 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 341789 [CRMEB 直到 5.6.3 JSON Token LoginServices.php remoteRegister uid 弱身份验证] |
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| 积分 | 20 |
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