CVE-2025-63807: 2dogz Blogin

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in weijiang1994 university-bbs (aka Blogin) in commit 9e06bab430bfc729f27b4284ba7570db3b11ce84 (2025-01-13). A weak verification code generation mechanism combined with missing rate limiting allows attackers to perform brute-force attacks on verification codes without authentication. Successful exploitation may result in account takeover via password reset or other authentication bypass methods.

Affected products

• 2dogz Blogin: up to and including 2024-11-09

Published 2025-11-20. Last modified 2026-06-17.