CVE-2025-63807 Auth bypass in n/a

Critical 9.8 Published Updated

Attackers can brute-force weak verification codes due to missing rate limiting, leading to account takeover via password reset.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-63807?

CVE-2025-63807 is a critical authentication bypass vulnerability in n/a, published on 20 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-307, CWE-1390

Which versions are affected by CVE-2025-63807?

It affects 1 product.

Products include 2dogz Blogin.

How do I fix CVE-2025-63807?

No fix has been published for CVE-2025-63807 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-63807 being exploited?

There is no known exploitation of CVE-2025-63807 in the wild and no public exploit code.

Sources

Also known as GHSA-xqf6-9hf7-323f.

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