CVE-2023-6623
Essential Blocks < 4.4.3 - Unauthenticated Local File Inclusion
- Published
- Updated
- Reserved
- Assigned by
- WPScan
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.
Public exploit
A reference of the record is tagged as an exploit or proof of concept: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
- https://wpscan.com/vulnerability/633c28e0-0c9e-4e68-9424-55c32789b41f (opens in a new tab)exploitvdb-entrytechnical-descriptionx_transferred
Timeline
ID reserved
By WPScan
- 38 days later
· 38 days later
Published
- 17 months later
· 17 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 50.7% · top 1.1% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-22 (opens in a new tab)All about CWE-22 and its CVEs
Affected products
- affected < 4.4.3
References (2)
- https://wpscan.com/vulnerability/633c28e0-0c9e-4e68-9424-55c32789b41f (opens in a new tab)exploitvdb-entrytechnical-descriptionx_transferred
- https://wpscan.com/blog/file-inclusion-vulnerability-fixed-in-essential-blocks-4-4-3/ (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-6623)Record last updated .