CVE-2026-89287 in ASPL Product Quotation Plugin
Summary
by MITRE • 10/11/2026
The ASPL Product Quotation WordPress plugin through 1.1.0 does not sanitize and escape a parameter before using it in SQL statements, allowing unauthenticated attackers to perform SQL injection and read arbitrary data from the database.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 10/11/2026
The vulnerability identified within the ASPL Product Quotation WordPress plugin prior to version 1.1.0 represents a critical security flaw rooted in improper input validation and output encoding practices. Specifically, the application fails to properly sanitize or escape user-supplied parameters before incorporating them into SQL queries executed against the underlying database management system. This deficiency creates an avenue for unauthenticated attackers to inject malicious SQL code directly into the query structure. Because the vulnerability does not require any form of authentication, it is particularly severe as it can be exploited by any remote actor with network access to the targeted WordPress instance, significantly lowering the barrier to entry for exploitation and increasing the potential attack surface considerably.
From a technical perspective, this flaw aligns directly with Common Weakness Enumeration identifier CWE-89, which classifies SQL Injection vulnerabilities where software does not neutralize or incorrectly handles special characters in user input before using that input as part of a database query. The absence of prepared statements or parameterized queries means that the application treats raw input as executable code rather than data. When an attacker supplies crafted input containing SQL syntax such as UNION SELECT statements, comment sequences, or boolean-based logic operators, the database engine interprets these commands alongside legitimate instructions. This allows the attacker to manipulate the query's intent, potentially bypassing intended access controls and extracting sensitive information that was not originally intended for public consumption.
The operational impact of this vulnerability is substantial, primarily concerning data confidentiality and integrity. Successful exploitation enables attackers to read arbitrary data from the WordPress database, which typically contains user credentials, personal identifiable information, site configuration details, and other proprietary content stored by plugins or themes. In many cases, if the web server process has elevated privileges within the database environment, this could lead to further compromise of the underlying system through techniques such as writing files to disk or executing operating system commands via specific SQL extensions like xp_cmdshell in Microsoft SQL Server environments. This level of access can result in complete site takeover, defacement, data theft, and significant reputational damage for the organization hosting the vulnerable application.
In terms of threat modeling and industry frameworks, this vulnerability is frequently associated with MITRE ATT&CK technique T1059, specifically command scripting or SQL injection sub-techniques depending on the exact payload used, falling under the Initial Access and Collection tactics. Attackers often leverage such flaws during automated scanning campaigns to identify vulnerable instances across large segments of the internet using tools like WPScan or custom scripts designed to probe for common WordPress plugin weaknesses. The lack of authentication requirement places this vulnerability in a high-risk category within most risk assessment matrices, as it requires no prior foothold on the system and can be exploited remotely over standard HTTP protocols without triggering typical intrusion detection systems that monitor for authenticated session anomalies.
Mitigation strategies must focus on immediate remediation through software updates and long-term secure coding practices. The primary recommendation is to upgrade the ASPL Product Quotation plugin to version 1.1.0 or later, where the developers have presumably implemented proper input sanitization and output escaping mechanisms. For organizations unable to update immediately due to compatibility constraints, temporary mitigations include implementing a Web Application Firewall configured with rulesets specifically tuned for SQL injection patterns, such as those based on OWASP ModSecurity Core Rule Set versions. Additionally, enforcing principle of least privilege for the database user account associated with the WordPress installation can limit the damage if an exploit is successful by restricting permissions to only what is strictly necessary for application functionality.
Developers and security teams should adopt a defense-in-depth approach that includes regular code audits focusing on data handling routines. It is essential to utilize parameterized queries or prepared statements exclusively when interacting with databases, as these methods ensure that user input is always treated as data rather than executable code. Furthermore, implementing strict content type validation for all incoming requests and applying context-specific output encoding can prevent not only SQL injection but also related cross-site scripting vulnerabilities that often stem from similar sanitization failures. Continuous monitoring of application logs for anomalous query patterns can aid in early detection of exploitation attempts, allowing security teams to respond before significant data loss occurs.