CVE-2026-89216 in JBoss Enterprise Application Platform
Summary
by MITRE • 10/29/2026
Wildfly's IIOP listener may permit deserialization of input streams before authentication is performed. An attacker who can gain access to the IIOP port may be able to construct and send malicious objects and achieve deserialization, if the target EJB allows untyped method parameters, and depending on the potential gadget chains available in the running classpath.
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Analysis
by VulDB Data Team • 10/29/2026
The vulnerability identified in versions of the vTables WordPress plugin prior to version 0.3 represents a critical security flaw rooted in insufficient input validation and output encoding mechanisms. Specifically, the application fails to properly sanitize or escape user-supplied parameters before incorporating them into SQL queries executed against the backend database. This architectural oversight creates a direct pathway for unauthenticated attackers to manipulate the structure of these database commands, bypassing intended access controls entirely. The absence of robust parameterization or strict whitelisting allows malicious actors to inject arbitrary SQL code that is interpreted by the database engine as part of the original query logic rather than as data input.
This specific technical flaw aligns with Common Weakness Enumeration identifier CWE-89, which classifies improper neutralization of special elements used in an SQL command, commonly known as SQL Injection. The vulnerability exists because the plugin processes external inputs without applying necessary escaping functions or prepared statements that would isolate code from data. In a typical WordPress environment utilizing MySQL or MariaDB backends, this lack of sanitization means that any parameter accepted by the vTables functionality can be exploited to alter query behavior. Attackers do not require valid credentials or administrative privileges to exploit this weakness, as the injection point is accessible via standard HTTP requests without authentication checks.
The operational impact of this vulnerability is severe and multifaceted. Successful exploitation allows unauthenticated attackers to perform SQL Injection attacks that facilitate unauthorized data extraction from the WordPress database. This can lead to the disclosure of sensitive information including user credentials, personal identifiable information stored in post metadata or user tables, and potentially administrative configuration details. Beyond simple data exfiltration, skilled adversaries may leverage this weakness for further compromise vectors such as writing malicious files to the server filesystem if specific database privileges are granted, or executing commands that disrupt service availability through destructive SQL operations. The ability to extract arbitrary data undermines the confidentiality integrity of the entire web application and its associated user base.
From a threat intelligence perspective, this vulnerability maps directly to MITRE ATT&CK technique T1059, specifically sub-techniques related to command scripting or database commands depending on the specific payload used by the attacker. It also relates to TA0006 Credential Access if password hashes are extracted, and TA0007 Discovery for enumerating database schema information. The lack of authentication requirement places this vulnerability in a high-risk category within automated scanning tools and bug bounty programs due to its ease of exploitation and broad impact potential across any WordPress installation running the affected plugin version.
To mitigate this risk, immediate action is required by site administrators and developers. The primary remediation step is to upgrade the vTables plugin to version 0.3 or later where these sanitization issues have been addressed. If upgrading is not immediately feasible, temporary mitigation strategies should include implementing a Web Application Firewall that can detect and block common SQL injection patterns in HTTP requests targeting the vulnerable endpoints. Additionally, developers must ensure that all future custom code adheres to secure coding standards by utilizing prepared statements with parameterized queries rather than string concatenation for building SQL commands. Regular security audits and static application security testing should be integrated into the development lifecycle to prevent similar CWE-89 vulnerabilities from being introduced in other plugins or themes within the WordPress ecosystem.