How severe is CVE-2023-6623?

CVE-2023-6623 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-6623 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 51% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6623?

CVE-2023-6623 affects Wpdeveloper Essential Blocks. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6623?

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.

Does CVE-2023-6623 have an EU (EUVD) identifier?

Yes. CVE-2023-6623 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58846.

When was CVE-2023-6623 published?

CVE-2023-6623 was published on 2024-01-15 and last updated on 2026-06-17.

CVE-2023-6623

CVE-2023-6623 is a critical-severity vulnerability in Wpdeveloper Essential Blocks with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 51% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 51% (99th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58846
Weakness: CWE-22
Affected product: Wpdeveloper Essential Blocks
Published: 2024-01-15
Last modified: 2026-06-17

Description

The Essential Blocks WordPress plugin before 4.4.3 does not prevent unauthenticated attackers from overwriting local variables when rendering templates over the REST API, which may lead to Local File Inclusion attacks.

Frequently asked questions

What is CVE-2023-6623?: The Essential Blocks WordPress plugin before 4.4.3 does not prevent unauthenticated attackers from overwriting local variables when rendering templates over the REST API, which may lead to Local File Inclusion attacks.
How severe is CVE-2023-6623?: CVE-2023-6623 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-6623 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 51% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6623?: CVE-2023-6623 affects Wpdeveloper Essential Blocks. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6623?: 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.
Does CVE-2023-6623 have an EU (EUVD) identifier?: Yes. CVE-2023-6623 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58846.
When was CVE-2023-6623 published?: CVE-2023-6623 was published on 2024-01-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wpdeveloper:essential_blocks:*:*:*:*:*:wordpress:*:*

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