Description

Contributor SQL Injection in WPBulky <= 1.2.2 versions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.5",
  "pubDate": "2026-08-28T16:18:32.163Z",
  "pubdate": "2026-08-28T16:18:32.163Z",
  "executiveSummary": "The WPBulky plugin, in versions 1.2.2 and lower, is susceptible to a SQL injection vulnerability initiated by authenticated users with Contributor-level privileges or higher.\nThis vulnerability stems from the improper sanitization and validation of user-supplied input before it is incorporated into database queries.\nAn attacker can exploit this flaw to execute arbitrary SQL commands, potentially leading to unauthorized data exfiltration, database modification, or compromise of the underlying WordPress installation.\nThe vulnerability requires authenticated access, limiting the attack surface to users already permitted to interact with the plugin's administrative or management interfaces.\nDue to the nature of SQL injection, the impact is critical, as it undermines the integrity and confidentiality of the entire database, posing a significant risk to the WordPress environment.",
  "technicalDetails": "The root cause of this vulnerability is the insufficient implementation of parameterized queries or input sanitization mechanisms within the WPBulky plugin's handling of database interaction functions. The application fails to properly escape user-controlled input before passing it to the database management system, allowing an attacker to break out of the intended query structure.\nThe attack flow initiates when a Contributor-level user sends a specifically crafted request to the vulnerable endpoint within WPBulky. Because the input is processed without adequate security controls, the attacker can append malicious SQL syntax to existing query parameters. This enables the injection of arbitrary SQL commands, which the database engine executes with the privileges of the WordPress database user.\nAn attacker can leverage this primitive to bypass authentication mechanisms, dump sensitive information from the database, such as user credentials, plugin configuration, or posts, and modify existing content. In some scenarios, if the database configuration permits, an attacker could potentially escalate privileges or gain remote code execution capabilities by writing files or manipulating administrative settings.\nThe vulnerability resides within the internal components responsible for processing bulk updates or query operations in WPBulky versions 1.2.2 and earlier. The lack of strict type checking and the absence of using the '$wpdb->prepare()' method to sanitize input directly facilitates this injection path. Authentication is required to reach the vulnerable code paths; however, since Contributor is a standard WordPress role, this significantly widens the pool of potential attackers compared to administrative-only vulnerabilities.\nSuccessful exploitation results in the unauthorized manipulation of the database, leading to potential data loss, site defacement, or persistent backdoors within the site's data structure."
}