CVE-2017-16781 Cross-site scripting in n/a
Cross-site scripting vulnerability in the MyBB installer allows attackers to inject malicious scripts, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2017-16781?
CVE-2017-16781 is a medium-severity cross-site scripting vulnerability in Mybb Mybb, published on 10 Nov 2017. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The installer in MyBB before 1.8.13 has XSS.
Weakness: CWE-79
Which versions are affected by CVE-2017-16781?
It affects 1 product.
Products include Mybb Mybb.
How do I fix CVE-2017-16781?
No fix has been published for CVE-2017-16781 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2017-16781 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-16781 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Mybb Mybb
Sources
Also known as GHSA-5324-g7hp-c439.