Vulnerability · Published Feb 5, 2024 · Assigned by Wordfence
CVE-2023-6933Better Search Replace <= 1.4.4 - Unauthenticated PHP Object Injection
High 8.8
In plain English
A high-severity unsafe deserialization in Better Search Replace from wpengine. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 68.0% (higher than 99.3% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code.
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| wpengine | Better Search Replace | 0 – through 1.4.4 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/895f2db1-a2ed-4a17-a4f6-cd13ee8f84af?source=cve
- https://plugins.trac.wordpress.org/browser/better-search-replace/trunk/includes/class-bsr-db.php#L334
- https://plugins.trac.wordpress.org/changeset/3023674/better-search-replace/trunk/includes/class-bsr-db.php