WordPress versions before 2.2.1 and WordPress MU versions before 1.2.3 had a security flaw that allowed a user who was already logged in to upload and run any PHP code. This was done by creating a post with a file name ending in .php and then sending the content of the file
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
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