How severe is CVE-2023-6827?

CVE-2023-6827 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-6827 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6827?

CVE-2023-6827 affects G5plus Essential Real Estate. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6827?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-6827 published?

CVE-2023-6827 was published on 2023-12-15 and last updated on 2026-06-17.

CVE-2023-6827

CVE-2023-6827 is a high-severity vulnerability in G5plus Essential Real Estate with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: G5plus Essential Real Estate
Published: 2023-12-15
Last modified: 2026-06-17

Description

The Essential Real Estate plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation on the 'ajaxUploadFonts' function in versions up to, and including, 4.3.5. This makes it possible for authenticated attackers with subscriber-level capabilities or above, to upload arbitrary files on the affected site's server which may make remote code execution possible. CVE-2023-6140 appears to be a duplicate of this issue.

Frequently asked questions

What is CVE-2023-6827?: The Essential Real Estate plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation on the 'ajaxUploadFonts' function in versions up to, and including, 4.3.5. This makes it possible for authenticated attackers with subscriber-level capabilities or above, to upload arbitrary files on the affected site's server which may make remote code execution possible. CVE-2023-6140 appears to be a duplicate of this issue.
How severe is CVE-2023-6827?: CVE-2023-6827 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-6827 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6827?: CVE-2023-6827 affects G5plus Essential Real Estate. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6827?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-6827 published?: CVE-2023-6827 was published on 2023-12-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:g5plus:essential_real_estate:*:*:*:*:*:wordpress:*:*

More vulnerabilities in G5plus Essential Real Estate

CVE-2023-6140 — High (CVSS 8.8): The Essential Real Estate WordPress plugin before 4.4.0 does not prevent users with limited privileges on the site,…
CVE-2025-48126 — High (CVSS 8.1): Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability…
CVE-2025-30849 — High (CVSS 8.1): Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability…
CVE-2023-6139 — Medium (CVSS 6.5): The Essential Real Estate WordPress plugin before 4.4.0 does not apply proper capability checks on its AJAX actions,…
CVE-2024-4273 — Medium (CVSS 6.4): The Essential Real Estate plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's…
CVE-2023-6141 — Medium (CVSS 5.4): The Essential Real Estate WordPress plugin before 4.4.0 does not apply proper capability checks on its AJAX actions,…

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