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CVE-2023-6933

HIGH 8.8 CVSS 3.1
Published
February 5, 2024
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-502
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

The Better Search Replace plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.4.4 via deserialization of untrusted input. This makes it possible for unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Affected WordPress components

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

  • wpengine Better Search Replace — Up to and including 1.4.4
  • wpengine better_search_replace — Before 1.4.5

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/better-search-replace/trunk/includes/class-bsr-db.php#L334 Exploit
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3023674/better-search-replace/trunk/includes/class-bsr-db.php Patch
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/895f2db1-a2ed-4a17-a4f6-cd13ee8f84af?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record