Description

The VikRentItems Flexible Rental Management System WordPress plugin before 1.2.4 does not sanitise and escape some of its parameters before using them in SQL statements, allowing unauthenticated users to perform SQL injection attacks.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.6",
  "pubDate": "2026-09-19T07:16:33.377Z",
  "pubdate": "2026-09-19T07:16:33.377Z",
  "executiveSummary": "The VikRentItems Flexible Rental Management System WordPress plugin, in versions prior to 1.2.4, contains a critical SQL injection vulnerability.\nThe flaw stems from the improper neutralization of special elements used in an SQL command, commonly referred to as CWE-89.\nThis vulnerability allows unauthenticated, remote attackers to execute arbitrary SQL queries against the underlying database.\nSuccessful exploitation enables unauthorized actors to bypass authentication, access sensitive data, modify database records, or potentially perform remote code execution if database permissions permit.\nGiven that the attack requires no authentication and targets the application's database layer, the risk to the confidentiality, integrity, and availability of the WordPress site is considered high.",
  "technicalDetails": "The vulnerability resides within the input handling logic of the VikRentItems plugin. The root cause is the failure to adequately sanitize and escape user-supplied parameters before incorporating them into dynamic SQL statements.\nBy neglecting to use parameterized queries or appropriate escaping functions—such as WordPress's $wpdb->prepare() method—the application inadvertently allows attackers to inject malicious SQL syntax into the database query execution context.\nThe attack flow begins when an unauthenticated user sends a crafted HTTP request containing malicious input parameters to the plugin's endpoints. Because the plugin processes these parameters without validation or filtering, the attacker can manipulate the query structure.\nFor example, an attacker could supply input that terminates the intended query prematurely and appends a UNION SELECT statement. This allows the attacker to retrieve data from other tables within the WordPress database, such as the wp_users table, potentially leading to credential theft or privilege escalation.\nBecause the vulnerability is exploitable by unauthenticated users, it is exposed to the public network, requiring no specific session tokens or administrative privileges to initiate the attack.\nThe exploitation process typically follows these steps: 1) Identification of the vulnerable input vector through traffic analysis or fuzzing. 2) Crafting a payload designed to bypass input filters and inject SQL commands. 3) Observing the application response to confirm successful query execution (e.g., through error-based, time-based, or union-based inference). 4) Exfiltration of database content or modification of application state.\nThe post-exploitation impact is severe, as the attacker gains full visibility and control over the database back-end. This can lead to a complete compromise of the WordPress installation, including the exfiltration of user credentials, customer rental history, and internal configuration details. Furthermore, in environments where the database user possesses excessive privileges, an attacker might leverage database-specific features to read/write files on the filesystem, potentially resulting in full system compromise."
}