Vulnerability · Published Oct 22, 2025 · Assigned by @huntr_ai
CVE-2025-11750User Enumeration via Distinct Error Messages in langgenius/dify-web
Medium 4.3
In plain English
A medium-severity security flaw in langgenius/dify from langgenius. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei.
Official description
In langgenius/dify-web version 1.6.0, the authentication mechanism reveals the existence of user accounts by returning different error messages for non-existent and existing accounts. Specifically, when a login or registration attempt is made with a non-existent username or email, the system responds with a message such as "account not found." Conversely, when the username or email exists but the password is incorrect, a different error message is returned. This discrepancy allows an attacker to enumerate valid user accounts by analyzing the error responses, potentially facilitating targeted social engineering, brute force, or credential stuffing attacks.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| langgenius | langgenius/dify | unspecified – through latest |
Weakness: CWE-544 · Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N