Output validation vulnerability in WordPress 4.9

WordPress versions before 4.9 have an issue that could allow someone to run code on the website remotely. This could be done by an authorized user uploading a thumbnail. It is uncertain if extra plugins are needed for this to work. Partially

Detected in:

WordPress fixed vulnerable versions: >= * < 4.9

This information is sourced from www.wpvulnerability.com. An open-source database of vulnerabilities maintained by the community. Help us out by submitting vulnerabilities!

Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:

> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21

Is this information incorrect? Please leave us a message.