Unauthenticated Broken Access Control in POS Entegratör

Executive Summary

CVE-2026-57688 is a Broken Access Control vulnerability in the WordPress POS Entegratör Plugin versions 3.7.103 and earlier.

This flaw allows unauthenticated attackers to perform privileged actions because the plugin lacks proper authorization checks.

It is considered high risk with a CVSS score of 8.2 and is actively targeted in mass-exploit campaigns.

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Detection Guidance

The vulnerability affects WordPress POS Entegratör Plugin versions 3.7.103 and earlier, allowing unauthenticated attackers to perform privileged actions due to missing authorization checks.

Detection typically involves identifying if the vulnerable plugin version is installed on your WordPress site.

You can check the installed plugin version by running the following command on your server where WordPress is hosted:

• grep -i 'Version' wp-content/plugins/pos-entegrator/readme.txt
• Or use WP-CLI to check the plugin version: wp plugin list --status=active | grep pos-entegrator

Additionally, monitoring for unusual or unauthorized privileged actions in your web server logs or WordPress logs may help detect exploitation attempts.

Patchstack also provides automated detection and mitigation tools that can help identify and protect against this vulnerability.

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Impact Analysis

This vulnerability can allow attackers who are not logged in to perform privileged actions on affected websites.

Such unauthorized actions can compromise the integrity of the website and potentially lead to further exploitation.

Because it is actively exploited in mass campaigns, thousands of websites are at risk regardless of their size or popularity.

Immediate mitigation is necessary by updating the plugin to version 3.8.0 or later, or by applying a Patchstack mitigation rule.

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Compliance Impact

The vulnerability allows unauthenticated attackers to perform privileged actions due to broken access control, which can lead to unauthorized access or manipulation of sensitive data.

Such unauthorized access and potential data breaches can negatively impact compliance with common standards and regulations like GDPR and HIPAA, which require strict access controls and protection of sensitive information.

Organizations using affected versions of the POS Entegratör plugin should urgently apply updates or mitigations to reduce the risk of non-compliance resulting from exploitation of this vulnerability.

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Mitigation Strategies

To mitigate the CVE-2026-57688 vulnerability in the POS Entegratör plugin, you should immediately update the plugin to version 3.8.0 or later.

If updating is not immediately possible, apply the Patchstack mitigation rule provided by Patchstack to protect your website.

Patchstack also offers automated solutions, including auto-updates for vulnerable plugins, which can help secure your website quickly.

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