Executive Summary

CVE-2026-39586 is a Sensitive Data Exposure vulnerability in the WordPress RepairBuddy Plugin versions up to 4.1132. It allows unauthenticated attackers to access sensitive information that is normally restricted within the system.

This vulnerability is classified under the OWASP Top 10 category A3: Sensitive Data Exposure and has a CVSS score of 5.3, indicating a low severity impact.

The issue was reported on January 27, 2026, and patched in version 4.1133 of the plugin, released on February 26, 2026.

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Impact Analysis

This vulnerability can allow unauthorized individuals to retrieve sensitive information embedded in the data sent by the RepairBuddy plugin.

Although the severity is considered low, such exposure can potentially enable further exploitation of the system.

Additionally, vulnerabilities like this are often targeted in mass-exploit campaigns affecting many websites regardless of their traffic or popularity.

Users of the plugin are advised to update to version 4.1133 or later to mitigate this risk.

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Mitigation Strategies

The vulnerability in the WordPress RepairBuddy Plugin up to version 4.1132 allows unauthenticated attackers to access sensitive information.

To mitigate this vulnerability immediately, users should update the plugin to version 4.1133 or later, where the issue has been patched.

Additionally, Patchstack offers mitigation solutions including auto-updates for vulnerable plugins, which can help reduce risk.

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Compliance Impact

The vulnerability allows unauthenticated attackers to access sensitive information that is normally restricted, which constitutes a Sensitive Data Exposure issue.

Exposure of sensitive data can lead to non-compliance with common standards and regulations such as GDPR and HIPAA, which require protection of personal and sensitive information.

Although the vulnerability has a low severity impact and is considered low priority, failure to patch it could result in unauthorized data access, potentially violating data protection requirements under these regulations.

Therefore, organizations using the affected plugin versions should update to the patched version to maintain compliance and reduce risk.

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Detection Guidance

This vulnerability affects WordPress RepairBuddy Plugin versions up to 4.1132 and allows unauthenticated attackers to access sensitive information. Detection typically involves identifying the plugin version in use and checking for signs of sensitive data exposure.

To detect if your system is vulnerable, first verify the plugin version installed on your WordPress site. You can do this by accessing the WordPress admin dashboard or by checking the plugin files directly.

• Use WP-CLI command to check plugin version: wp plugin list | grep repairbuddy
• Manually check the plugin version in the plugin's main PHP file (usually contains a version header).

To detect exploitation attempts or sensitive data exposure on your network, monitor HTTP requests for unusual or unauthorized access patterns to endpoints related to the RepairBuddy plugin.

• Use network monitoring tools like tcpdump or Wireshark to capture HTTP traffic and filter for requests targeting RepairBuddy plugin URLs.
• Example tcpdump command: tcpdump -i any -A -s 0 'tcp port 80 or tcp port 443' | grep -i repairbuddy

Since the vulnerability allows retrieval of embedded sensitive data, look for HTTP responses containing sensitive information that should not be publicly accessible.

Ultimately, the best mitigation and detection is to update the plugin to version 4.1133 or later, as this patch fixes the vulnerability.

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