CVE-2018-25247 MyBB Like Plugin 3.0.0 Cross-Site Scripting via User Profiles
Authenticated attackers can inject scripts into post subjects, leading to stored XSS execution in other users' browsers when viewing profiles.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-25247?
CVE-2018-25247 is a medium-severity cross-site scripting vulnerability in MyBB Like Plugin, published on 4 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
MyBB Like Plugin 3.0.0 contains a stored cross-site scripting vulnerability. Authenticated attackers can inject script payloads into post or thread subjects; when other users view a profile that displays the attacker's liked posts, the unsanitized subject is rendered, executing the script in the viewer's browser.
Weakness: CWE-79
Which versions are affected by CVE-2018-25247?
It affects 1 product.
Products include Mybb Thankyou\/Like System.
How do I fix CVE-2018-25247?
No fix has been published for CVE-2018-25247 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-2018-25247 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25247 exists.
Sources
Also known as GHSA-rh85-6vwm-xgq4.