PT-2026-78439 · Mybooks · Mybooks
CVE-2026-45274
·
Published
2026-08-19
·
Updated
2026-08-19
CVSS v4.0
6.9
Medium
| Vector | AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Name of the Vulnerable Software and Affected Versions
MyBooks versions prior to 3.42.0
Description
The
SignUp.post handler for the endpoint "/api/user/sign up" in webserver/handlers/user.py fails to enforce the ALLOW REGISTER configuration flag. This allows an unauthenticated remote attacker to bypass frontend restrictions and create a valid account even when public registration is disabled by the administrator. Additionally, the process auth header() function in webserver/handlers/base.py does not verify the account's active flag, enabling newly created, unactivated accounts to authenticate immediately and access user-level API functionality.Recommendations
Update to version 3.42.0.
Exploit
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Mybooks