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CVE-2023-6933

78
FAUCET Score

CVE-2023-6933 is a critical PHP Object Injection vulnerability affecting all versions up to 1.4.4 of the Better Search Replace plugin for WordPress. This flaw allows unauthenticated attackers to inject PHP Objects due to deserialization of untrusted input. With a CVSS score of 9.8 (Critical), the vulnerability has a high potential for impact, including arbitrary file deletion, sensitive data retrieval, or code execution if a suitable POP chain exists elsewhere on the system. While there is no known active exploitation in the wild, Nuclei templates are available, and the vulnerability has garnered significant community discussion and media coverage, indicating a high potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, <= 1.4.4CPE match
cpe:2.3:a:wpengine:better_search_replace:*:*:*:*:*:wordpress:*:*
< 1.4.5CPE matchmatch criteria
cpe:2.3:a:wpengine:better_search_replace:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
68.05%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Nuclei: CVE-2023-6933 · Sep 24, 2025
This CVE's current EPSS score of 0.6805 is in the 97th percentile among its peer group of 36,821 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/better-search-replace/trunk/includes/class-bsr-db.php
Exploit
plugins.trac.wordpress.org / changeset/3023674/better-search-replace/trunk/includes/class-bsr-db.php
Patch
wordfence.com / threat-intel/vulnerabilities/id/895f2db1-a2ed-4a17-a4f6-cd13ee8f84af
Third Party Advisory