CyberRota Analysis
AI-GeneratedThe MyBooks eBook management web server is vulnerable due to improper enforcement of the ALLOW_REGISTER configuration flag, allowing unauthenticated attackers to create accounts even when public registration is disabled. This flaw not only enables unauthorized account creation but also allows immediate access to user-level API functionalities, potentially leading to further exploitation through related authorization vulnerabilities. Administrators of MyBooks versions 3.41.2 and earlier should prioritize upgrading to version 3.42.0 to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
MyBooks is anebook management web server also known as Talebook. In 3.41.2 and earlier, the SignUp.post handler for POST /api/user/sign_up in webserver/handlers/user.py does not enforce the ALLOW_REGISTER configuration flag, even though the frontend hides registration controls when the flag is false. An unauthenticated remote attacker can call the endpoint directly and create a valid account on an instance whose administrator disabled public registration. The process_auth_header function in webserver/handlers/base.py also does not verify the account's active flag, so the newly created and unactivated account can authenticate immediately and access user-level API functionality. The bypass defeats the intended account-creation policy and can supply the low-privilege account required by related authorization vulnerabilities. This issue is fixed in version 3.42.0.