CVE-2016-9420 Security feature bypass in n/a

Critical 9.8 Published 31 Jan 2017 Updated 6 Aug 2024

Remote attackers can bypass security checks in MyBB forum software due to loose comparison errors, potentially compromising application integrity.

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-2016-9420?

CVE-2016-9420 is a critical vulnerability in Mybb Mybb, published on 31 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allow remote attackers to have unspecified impact via vectors related to "loose comparison false positives."

Weakness: CWE-20

Which versions are affected by CVE-2016-9420?

It affects 2 products.

Products include Mybb Merge System, Mybb Mybb.

How do I fix CVE-2016-9420?

No fix has been published for CVE-2016-9420 yet. Limit exposure of the affected software until one is available.

Is CVE-2016-9420 being exploited?

There is no known exploitation of CVE-2016-9420 in the wild and no public exploit code.

All Mybb Mybb vulnerabilities

Sources

Also known as GHSA-8g78-7gc4-jx8q.