| Title | jeecgboot JeecgBoot 3.9.1 Authorization Bypass |
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| Description | JeecgBoot provides two login endpoints:
/sys/login - Standard login, requires valid captcha verification
/sys/mLogin - Mobile login, no captcha required
The /sys/mLogin endpoint accepts the exact same username + password JSON body as the standard login but completely skips captcha validation. It also lacks any rate limiting, IP-based lockout, or account lockout mechanism.
This allows attackers to perform unlimited brute-force attacks against any user account without any bot protection. Combined with V-001 (hardcoded AES key + plaintext fallback), passwords can be sent in plaintext. |
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| Source | ⚠️ https://github.com/xpp3901/CVE_APPLY/tree/main/V-009_mLogin_Captcha_Bypass |
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| User | xpp39 (UID 97299) |
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| Submission | 04/13/2026 13:42 (3 months ago) |
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| Moderation | 05/08/2026 22:14 (25 days later) |
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| Status | Accepted |
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| VulDB entry | 362348 [JeecgBoot 3.9.1 mLogin Endpoint LoginController.java authorization] |
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| Points | 20 |
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