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CVE-2018-1000773

HIGH 8.8 CVSS 3.0
Published
September 6, 2018
Last modified
June 17, 2026
NVD status
Modified
Reported by
cve@mitre.org
Weakness
CWE-20
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

WordPress version 4.9.8 and earlier contains a CWE-20 Input Validation vulnerability in thumbnail processing that can result in remote code execution due to an incomplete fix for CVE-2017-1000600. This attack appears to be exploitable via thumbnail upload by an authenticated user and may require additional plugins in order to be exploited however this has not been confirmed at this time.

Affected WordPress components

  • WordPress core
    Confirmed match
    Up to and including 4.9.8

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

  • n/a n/a — Versions not specified
  • wordpress wordpress — Up to and including 4.9.8

References

  • www.securityfocus.com http://www.securityfocus.com/bid/105306 Third Party Advisory, VDB Entry
  • www.theregister.co.uk https://www.theregister.co.uk/2018/08/20/php_unserialisation_wordpress_vuln/ Third Party Advisory
  • youtu.be https://youtu.be/GePBmsNJw6Y?t=1763 Third Party Advisory
  • nvd.nist.gov Official NVD record