How severe is CVE-2023-5201?

CVE-2023-5201 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-5201 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5201?

CVE-2023-5201 affects Rickbeckman Openhook. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5201?

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

When was CVE-2023-5201 published?

CVE-2023-5201 was published on 2023-09-30 and last updated on 2026-06-17.

CVE-2023-5201

CVE-2023-5201 is a critical-severity vulnerability in Rickbeckman Openhook with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Rickbeckman Openhook
Published: 2023-09-30
Last modified: 2026-06-17

Description

The OpenHook plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 4.3.0 via the 'php' shortcode. This allows authenticated attackers with subscriber-level permissions or above, to execute code on the server. This requires the [php] shortcode setting to be enabled on the vulnerable site.

Frequently asked questions

What is CVE-2023-5201?: The OpenHook plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 4.3.0 via the 'php' shortcode. This allows authenticated attackers with subscriber-level permissions or above, to execute code on the server. This requires the [php] shortcode setting to be enabled on the vulnerable site.
How severe is CVE-2023-5201?: CVE-2023-5201 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-5201 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5201?: CVE-2023-5201 affects Rickbeckman Openhook. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5201?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-5201 published?: CVE-2023-5201 was published on 2023-09-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rickbeckman:openhook:*:*:*:*:wordpress:*:*:*

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