CVE-2026-23543: 
WordPress vulnerability analysis and mitigation

CVE-2026-23543 is a Missing Authorization (Broken Access Control) vulnerability in the WPDeveloper Essential Addons for Elementor WordPress plugin. It affects all versions up to and including 6.5.5, allowing unauthenticated network-based attackers to exploit incorrectly configured access control security levels. The vulnerability was reported on October 19, 2025, by researcher "Bonds" via Patchstack's Active VDP program, and published on November 18, 2025. It carries a CVSS v3.1 base score of 5.3 (Medium) (Patchstack).

The root cause is classified as CWE-862 (Missing Authorization), where one or more plugin functions fail to perform adequate authorization checks before executing privileged or sensitive actions (Patchstack). This allows unauthenticated remote attackers to invoke functionality that should be restricted to higher-privileged users, such as administrators or editors. No authentication, nonce token, or capability check is enforced on the affected endpoint(s), making exploitation straightforward over the network with low attack complexity and no user interaction required.

Successful exploitation results in a limited confidentiality impact — unauthenticated attackers may access information or trigger actions that should be restricted to privileged users, though integrity and availability are not directly affected based on the CVSS scoring (Patchstack). The scope is limited to the affected WordPress installation. While the individual impact is low, the plugin's wide deployment makes it a candidate for mass-exploit campaigns targeting thousands of WordPress sites simultaneously.

No public proof-of-concept exploit code has been identified for this vulnerability. The EPSS score is approximately 0.017%, indicating a low probability of exploitation in the near term. The vulnerability has not been added to the CISA Known Exploited Vulnerabilities (KEV) catalog, and no threat actor attribution or in-the-wild exploitation has been reported. Patchstack notes that vulnerabilities of this class are commonly used in mass-exploit campaigns against WordPress sites regardless of traffic size or popularity (Patchstack).

WPDeveloper has released version 6.5.6 of Essential Addons for Elementor, which patches this vulnerability. All users running version 6.5.5 or earlier should update immediately via the WordPress plugin dashboard or by downloading the patched version from the WordPress plugin repository. Patchstack users can enable auto-update for vulnerable plugins as an additional safeguard (Patchstack). No configuration-based workaround is documented; upgrading to 6.5.6 or later is the only recommended remediation.