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CVE-2021-24253

HIGH 8.8 CVSS 3.1
Published
May 6, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
contact@wpscan.com
Weakness
CWE-434
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Affected WordPress components

  • classyfrieds Plugin · classyfrieds
    Confirmed match Homeless
    Up to and including 3.8; From 3.8 (including) to 3.8 (including)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown Classyfrieds — From 3.8 (including) to 3.8 (including)
  • classyfrieds_project classyfrieds — Up to and including 3.8

References

  • github.com https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.md Exploit, Third Party Advisory
  • wpscan.com https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079 Exploit, Third Party Advisory
  • nvd.nist.gov Official NVD record