CVE-2021-4388

MEDIUM 4.3

Opal Estate <= 1.6.11 - Missing Authorization

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

The Opal Estate plugin for WordPress is vulnerable to featured property modifications in versions up to, and including, 1.6.11. This is due to missing capability checks on the opalestate_set_feature_property() and opalestate_remove_feature_property() functions. This makes it possible for unauthenticated attackers to set and remove featured properties.

CWE	CWE-862
Vendor	wpopal
Product	opal estate
Published	Jul 1, 2023
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

wpopal / Opal Estate

0 ≤ 1.6.11

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/5ce729a2-a106-45ab-b96c-cfe75246def7?source=cve blog.nintechnet.com: https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/opal-estate/trunk/inc/ajax-functions.php#L177

Credits

Jerome Bruandet