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Vulnerabilities

Vulnerability · CVE-2023-6933

wpengine better_search_replace Deserialization of Untrusted Data

Published Jan 25, 2024 · catalog updated Jan 25, 2024 · wpengine better_search_replace Deserialization of

Patch now

CVE-2023-6933 is in the CISA known-exploited catalog. Confirm wpengine better_search_replace Deserialization of against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (wpengine better_search_replace Deserialization of).
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
68.05%
Remediation
Remediation guidance
Affected products
stated better_search_replace · vendor wpengine better_search_replace

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. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated better_search_replace<= 1.4.4
  • vendor wpengine better_search_replaceversion unspecified

How to fix CVE-2023-6933

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-6933 is in the CISA known-exploited catalog. Confirm wpengine better_search_replace Deserialization of against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with <= 1.4.4. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 68.05%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 25, 2024 · VulnCheck KEV

    Detected

    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 all

  2. Jan 25, 2024 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2023-6933

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-6933

    30-day exploitation probability 68.0%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2023-6933

    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 vul

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.