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.

CVSS v3.1

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

CVSS v3.1

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

EPSS

50.67% chance of exploitation in the next 30 days, 99th percentile

Nuclei

critical · CWE-22

Published

2024-01-15

Updated

2025-06-11

Proof-of-concept exploits (2)

• https://wpscan.com/blog/file-inclusion-vulnerability-fixed-in-essential-blocks-4-4-3/
• https://wpscan.com/vulnerability/633c28e0-0c9e-4e68-9424-55c32789b41f

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-6623.yaml

References

• CVE Record
• NVD entry

Related

• CVE-2023-6621
• CVE-2023-6625
• CVE-2023-6620
• CVE-2023-6626
• CVE-2023-6619
• CVE-2023-6627