CVE-2023-6933
CriticalExploitedBetter Search Replace <= 1.4.4 - Unauthenticated PHP Object Injection
Published Feb 8, 2024 · Updated Apr 8, 2026 · Also known as 895f2db1-a2ed-4a17-a4f6-cd13ee8f84af
Key Facts
Patch immediately- CVE-2023-6933 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Better Search Replace (Wpengine).
- It is exploited in the wild, listed in Industry KEV feed since Jan 25, 2024. No public exploit code is known.
- EPSS estimates a 68% probability of exploitation in the next 30 days.
- Fixed versions are available, including Better Search Replace 1.4.5.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
68%
Higher than 99.3% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
None known
Get the full CVE-2023-6933 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jan 25, 2024 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Better Search ReplaceWpengine | See advisory | 1.4.5 |
Patched Releases
Better Search Replace
1.4.5
Timeline
Added to Industry KEV feed
Jan 25, 2024
Publicly disclosed
Feb 8, 2024
Last updated
Apr 8, 2026
Weakness Type
- CWE-502 Deserialization of Untrusted Data
References
- advisoryhttps://advisory.abay.sh/cve-2023-7225/
- advisoryhttps://codecanyon.net/item/userpro-user-profiles-with-social-login/5958681
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2024-1207
- advisoryhttps://plugins.trac.wordpress.org/browser/contact-form-entries/trunk/includes/plugin-pages.php?rev=3003884#L1213
- advisoryhttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3023266%40mappress-google-maps-for-wordpress%2Ftrunk&old=3022439%40mappress-google-maps-for-wordpress%2Ftrunk&sfp_email=&sfph_mail=
FAQ
Common Questions.
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.
Affected: Better Search Replace (Wpengine). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jan 25, 2024.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Better Search Replace 1.4.5.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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