High severity8.8NVD Advisory· Published May 6, 2021· Updated Jun 17, 2026
CVE-2021-24253
CVE-2021-24253
Description
The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.
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Affected products
1- Range: <=3.8
Patches
Vulnerability mechanics
References
2- github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.mdnvdExploitThird Party Advisory
- wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079nvdExploitThird Party Advisory
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