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CVE-2023-6933

Wpengine Better Search Replace insecure deserialization

8.8 HIGHPublic exploitEPSS 68.0%
  1. Published5 Feb 2024

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Wpengine Better Search Replace< 1.4.5

Remediation

Fixed in
Wpengine Better Search Replace≥ 1.4.5

References

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Frequently asked

Is CVE-2023-6933 being actively exploited?

CVE-2023-6933 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 68.0%.

How severe is CVE-2023-6933?

CVE-2023-6933 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 68.0% probability of exploitation.

Which products are affected by CVE-2023-6933?

Affected products include Wpengine Better Search Replace.

How do I fix CVE-2023-6933?

Upgrade affected software to a fixed version, for example Wpengine Better Search Replace 1.4.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-6933 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.