CVE-2023-6623

Name: CVE-2023-6623
Creator: NVD / NIST
Published: 2024-01-15T16:15:12.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 50.67%

Last modified Jun 17, 2026

CVE-2023-6623 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 50.67% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

50.67%

98.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Wpdeveloper	Essential Blocks	< 4.4.3

References

https://wpscan.com/blog/file-inclusion-vulnerability-fixed-in-essential-blocks-4-4-3/Exploit, Third Party Advisory
https://wpscan.com/vulnerability/633c28e0-0c9e-4e68-9424-55c32789b41fExploit, Third Party Advisory
https://wpscan.com/blog/file-inclusion-vulnerability-fixed-in-essential-blocks-4-4-3/Exploit, Third Party Advisory
https://wpscan.com/vulnerability/633c28e0-0c9e-4e68-9424-55c32789b41fExploit, Third Party Advisory

Timeline

Published: Jan 15, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6623?

How severe is CVE-2023-6623?

CVE-2023-6623 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 50.67% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6623?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6623?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST