CVE-2026-28080 in SEO PRO Plugin
Summary
by MITRE • 03/06/2026
Missing Authorization vulnerability in Rank Math Rank Math SEO PRO allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Rank Math SEO PRO: from n/a through 3.0.95.
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Analysis
by VulDB Data Team • 03/06/2026
The CVE-2026-28080 vulnerability represents a critical missing authorization flaw within the Rank Math SEO PRO plugin, specifically impacting versions ranging from an unspecified starting point through 3.0.95. This vulnerability resides in the plugin's access control mechanisms and directly compromises the security architecture by allowing unauthorized users to exploit incorrectly configured security levels. The issue manifests as a failure in proper authorization checks, enabling attackers to bypass intended access restrictions and potentially gain elevated privileges within the WordPress environment.
This vulnerability falls under the CWE-284 category, which specifically addresses improper access control issues in software systems. The flaw operates at the application level where the Rank Math plugin fails to properly validate user permissions before granting access to sensitive administrative functions. The missing authorization check creates a pathway for privilege escalation attacks, where unauthenticated or low-privileged users can potentially access restricted features and perform actions typically reserved for administrators or authorized personnel. The vulnerability's impact is particularly severe given that Rank Math is a popular SEO plugin with extensive administrative capabilities that can affect website content, configuration settings, and overall site security.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential data manipulation, content injection, and complete compromise of the affected WordPress installation. Attackers exploiting this flaw could modify SEO settings, inject malicious code, alter content, or potentially escalate privileges to gain full administrative control over the website. The vulnerability's persistence across multiple versions indicates a fundamental flaw in the plugin's access control implementation that was not adequately addressed through the affected release cycle. This creates a significant risk for websites using the plugin, particularly those that rely heavily on SEO configurations and have extensive administrative features enabled.
Mitigation strategies for CVE-2026-28080 should prioritize immediate plugin updates to versions that address the authorization flaw, as recommended by the vendor. Organizations should implement additional security measures including regular security audits of installed plugins, monitoring for unauthorized access attempts, and ensuring proper network segmentation to limit potential damage. The vulnerability aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation, as attackers could leverage this flaw to obtain elevated privileges. Security professionals should also consider implementing web application firewalls, enforcing strong authentication mechanisms, and conducting regular penetration testing to identify similar access control weaknesses in other components of the WordPress ecosystem. Organizations should review their current access control policies and ensure that proper principle of least privilege is maintained across all administrative functions.