CVE-2026-103345 in Pie Register Plugin
Summary
by MITRE • 10/01/2026
Insertion of Sensitive Information Into Sent Data vulnerability in Shamim Rajani Pie Register pie-register allows Retrieve Embedded Sensitive Data.This issue affects Pie Register: from n/a through 3.8.4.13.
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Analysis
by VulDB Data Team • 10/01/2026
The vulnerability identified as the insertion of sensitive information into sent data within the Shamim Rajani Pie Register plugin represents a critical failure in data handling practices, specifically affecting versions ranging from an unspecified initial release up to version 3.8.4.13. This flaw allows for the retrieval of embedded sensitive data that is transmitted during normal operations or administrative interactions with the WordPress platform. The core technical issue lies in the application's tendency to include confidential details within HTTP responses or API payloads without adequate sanitization, encryption, or access control mechanisms. When a user interacts with specific features of the Pie Register plugin, such as registration forms, profile updates, or data export functions, the server may inadvertently return internal configuration values, database connection strings, user credentials, or other proprietary information in plaintext format within the response body. This behavior violates fundamental principles of secure software design where sensitive context should never be exposed to untrusted parties through standard communication channels.
From a technical perspective, this vulnerability aligns closely with CWE-209, which describes the generation of an error message that includes sensitive information before or during a transaction. It also relates significantly to CWE-538, concerning the insertion of sensitive information into data structures used for storage and retrieval by external components. The operational impact is severe because it facilitates unauthorized access to backend systems and user accounts. Attackers can exploit this flaw through simple HTTP requests, potentially using automated tools or manual testing scripts to capture these responses. Once obtained, the embedded sensitive data can be leveraged for further attacks such as credential stuffing, privilege escalation, or targeted phishing campaigns against administrators and users whose information was exposed. The lack of proper input validation and output encoding means that even non-administrative users might trigger this behavior depending on how the plugin processes form submissions or AJAX calls.
This vulnerability is also relevant to the MITRE ATT&CK framework under techniques related to Collection, specifically Data from Configuration Repositories or Unsecured Credentials if the exposed data includes authentication tokens or keys. The exposure of such information undermines the confidentiality and integrity guarantees expected in web application security standards like OWASP Top 10, particularly regarding Broken Access Control and Sensitive Data Exposure. Mitigation strategies must focus on immediate remediation by updating the Pie Register plugin to a version where this issue has been patched, ensuring that developers have implemented strict output filtering and removed any debug or diagnostic code from production environments. Additionally, implementing Web Application Firewalls with rules designed to detect anomalous data patterns in responses can provide an additional layer of defense while updates are applied. Regular security audits focusing on API response structures and server-side logging configurations will help prevent similar occurrences by ensuring that only necessary public information is transmitted during user interactions.