CVE-2023-6933
Better Search Replace <= 1.4.4 - Unauthenticated PHP Object Injection
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-502 |
| Vendor | wpengine |
| Product | better search replace |
| Published | Feb 5, 2024 |
| Last Updated | Apr 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for wpengine better search replace
Be the first to know when new high vulnerabilities affecting wpengine better search replace are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
wpengine / Better Search Replace
0 ≤ 1.4.4
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/895f2db1-a2ed-4a17-a4f6-cd13ee8f84af?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/better-search-replace/trunk/includes/class-bsr-db.php#L334 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3023674/better-search-replace/trunk/includes/class-bsr-db.php
Credits
Sam Pizzey