CVE-2018-25116 MyBB Thread Redirect Plugin 0.2.1 - Cross-Site Scripting
Attackers can inject malicious scripts via custom text fields in the MyBB Thread Redirect Plugin, leading to arbitrary script execution when viewed by other users.
- 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-2018-25116?
CVE-2018-25116 is a medium-severity cross-site scripting vulnerability in jamiesage123 MyBB Thread Redirect Plugin, published on 23 Jan 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
MyBB Thread Redirect Plugin 0.2.1 contains a cross-site scripting vulnerability in the custom text input field for thread redirects. Attackers can inject malicious SVG scripts that will execute when other users view the thread, allowing arbitrary script execution.
Weakness: CWE-79
Which versions are affected by CVE-2018-25116?
It affects 1 product.
Products include Mybb Thread Redirect.
How do I fix CVE-2018-25116?
No fix has been published for CVE-2018-25116 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-2018-25116 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25116 exists.
Sources
Also known as GHSA-x6j8-jwx9-2739.