CVE-2023-6827
WordPress vulnerability analysis and mitigation

Overview

The Essential Real Estate plugin for WordPress (CVE-2023-6827) contains a critical vulnerability in versions up to and including 4.3.5. The vulnerability was discovered and disclosed on December 15, 2023, affecting the plugin's ajaxUploadFonts function due to insufficient file type validation (NVD CVE).

Technical details

The vulnerability is classified as an Unrestricted Upload of File with Dangerous Type (CWE-434). It has received a CVSS v3.1 base score of 8.8 (HIGH) from NIST with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, while Wordfence assigned a score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H (NVD CVE).

Impact

The vulnerability allows authenticated attackers with subscriber-level capabilities or above to upload arbitrary files to the affected site's server. This could potentially lead to remote code execution, compromising the entire WordPress installation (NVD CVE).

Mitigation and workarounds

A patch has been released to address this vulnerability. Site administrators should update their Essential Real Estate plugin to a version newer than 4.3.5 (WordPress Patch).

Additional resources


SourceThis report was generated using AI

Related WordPress vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-14001MEDIUM5.4
  • wp-duplicate-page
NoYesJan 13, 2026
CVE-2025-14579MEDIUM4.8
  • quiz-maker
NoYesJan 12, 2026
CVE-2025-13393MEDIUM4.3
  • featured-image-from-url
NoYesJan 10, 2026
CVE-2025-14829N/AN/A
  • e-xact-hosted-payment
NoNoJan 13, 2026
CVE-2025-10915N/AN/A
  • dreamer-blog
NoNoJan 13, 2026

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management