| Title | Formalms FormaLMS 4.1.18 Information Exposure Through Discrepancy |
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| Description | A user enumeration vulnerability exists in FormaLMS (4.1.18 and below) in the password recovery functionality accessible via the /lostpwd endpoint. The application returns different error messages for valid and invalid usernames (e.g., "The username you've inserted doesn't exist. Please check and retry." for non-existent users), allowing an unauthenticated attacker to determine which usernames are registered in the system through observable response discrepancy (CWE-204). This information can be leveraged to conduct targeted brute-force or credential stuffing attacks. |
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| User | Brunlorenz (UID 95709) |
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| Submission | 02/18/2026 22:16 (8 months ago) |
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| Moderation | 02/20/2026 01:14 (1 day later) |
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| Status | Duplicate |
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| VulDB entry | 347015 [Forma LMS up to 4.1.18 /lostpwd response discrepancy] |
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| Points | 0 |
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