Executive Summary

CVE-2026-34903 is a Missing Authorization vulnerability in the WordPress Ocean Extra Plugin versions up to and including 2.5.3. It is classified as a Broken Access Control issue, where certain plugin functions lack proper authorization, authentication, or nonce token checks.

This means that unprivileged users, such as those with Subscriber or Developer roles, could perform actions that should be restricted to higher-privileged users.

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Impact Analysis

The vulnerability allows users with low-level privileges to execute actions reserved for higher-privileged users, potentially leading to unauthorized changes or disruptions within the affected WordPress site.

Although the CVSS score is 5.4, indicating a low severity impact, such vulnerabilities are often targeted in mass-exploit campaigns affecting many websites indiscriminately.

Immediate impact could include unauthorized modifications or limited denial of service, but significant exploitation effects are considered unlikely.

To mitigate the risk, users should update the Ocean Extra Plugin to version 2.5.4 or later.

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Detection Guidance

This vulnerability affects the WordPress Ocean Extra Plugin versions up to and including 2.5.3. Detection involves identifying if your system is running a vulnerable version of this plugin.

You can check the installed plugin version via WordPress admin dashboard or by running commands on your server.

• Use WP-CLI command to check the plugin version: wp plugin list --status=active
• Look for 'ocean-extra' in the list and verify its version number.
• Alternatively, check the plugin version by inspecting the plugin's main PHP file header located in wp-content/plugins/ocean-extra/.

Since the vulnerability involves broken access control, monitoring for unusual privilege escalations or unauthorized actions by subscriber-level users could also indicate exploitation attempts.

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Mitigation Strategies

The primary immediate mitigation step is to update the Ocean Extra Plugin to version 2.5.4 or later, where this vulnerability has been patched.

If updating immediately is not possible, consider disabling the plugin temporarily or restricting access to users with subscriber-level privileges to prevent exploitation.

You may also seek assistance from your hosting provider or developers to apply patches or implement access control measures.

Enabling auto-updates for plugins can help prevent similar vulnerabilities in the future.

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Compliance Impact

The vulnerability in OceanWP Ocean Extra Plugin involves broken access control allowing unprivileged users to perform actions reserved for higher-privileged users. Such unauthorized access could potentially lead to improper handling or exposure of sensitive data.

While the CVE description and resources do not explicitly mention compliance with standards like GDPR or HIPAA, broken access control issues generally pose risks to data confidentiality and integrity, which are critical components of these regulations.

Therefore, if exploited, this vulnerability could negatively impact compliance by enabling unauthorized actions that may lead to data breaches or unauthorized data manipulation, which are violations under regulations such as GDPR and HIPAA.

Users are advised to update to the patched version 2.5.4 to mitigate these risks and help maintain compliance.

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