CVE-2018-1000503 Missing authorization in n/a
Attackers can view posts in private forums without a password by exploiting an Insecure Direct Object Reference vulnerability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-1000503?
CVE-2018-1000503 is a medium-severity missing authorization vulnerability in Mybb Mybb, published on 26 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
MyBB Group MyBB contains a Incorrect Access Control vulnerability in Private forums that can result in Users can view posts from private forums without having the password. This attack appear to be exploitable via Subscribe to a forum through IDOR. This vulnerability appears to have been fixed in 1.8.15.
Weakness: CWE-269
Which versions are affected by CVE-2018-1000503?
It affects 1 product.
Products include Mybb Mybb.
How do I fix CVE-2018-1000503?
No fix has been published for CVE-2018-1000503 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2018-1000503 being exploited?
There is no known exploitation of CVE-2018-1000503 in the wild and no public exploit code.
Other vulnerabilities in Mybb Mybb
Sources
Also known as GHSA-53rm-g937-ghg8.