How severe is CVE-2023-6933?

CVE-2023-6933 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-6933 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 68% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6933?

CVE-2023-6933 affects Wpengine Better Search Replace. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6933?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-6933 have an EU (EUVD) identifier?

Yes. CVE-2023-6933 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59131.

When was CVE-2023-6933 published?

CVE-2023-6933 was published on 2024-02-05 and last updated on 2026-06-17.

CVE-2023-6933

CVE-2023-6933 is a high-severity vulnerability in Wpengine Better Search Replace with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 68% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-502.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 68% (99th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-59131
Weakness: CWE-502
Affected product: Wpengine Better Search Replace
Published: 2024-02-05
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-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 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.
How severe is CVE-2023-6933?: CVE-2023-6933 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-6933 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 68% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6933?: CVE-2023-6933 affects Wpengine Better Search Replace. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6933?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-6933 have an EU (EUVD) identifier?: Yes. CVE-2023-6933 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59131.
When was CVE-2023-6933 published?: CVE-2023-6933 was published on 2024-02-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wpengine:better_search_replace:*:*:*:*:*:wordpress:*:*

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