CVE-2026-80491 in SAMO Forms Plugin
Summary
by MITRE • 09/12/2026
The SAMO Forms WordPress plugin through 1.0.0 does not properly sanitise and escape user input before using it in SQL queries in several unauthenticated actions, allowing unauthenticated attackers to perform SQL injection attacks.
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Analysis
by VulDB Data Team • 09/12/2026
The vulnerability identified in the SAMO Forms WordPress plugin version 1.0.0 represents a critical security flaw rooted in insufficient input validation and sanitization mechanisms within the application's backend logic. Specifically, the software fails to properly sanitize or escape user-supplied data before incorporating it into Structured Query Language statements executed against the underlying database management system. This deficiency exists across multiple unauthenticated endpoints, meaning that any external actor with network access to the WordPress instance can exploit this weakness without needing valid credentials or a logged-in session. The core technical failure lies in the direct concatenation of raw user input into SQL query strings, bypassing standard security controls such as prepared statements or parameterized queries which are designed to separate code from data and prevent injection attacks.
From an operational perspective, this flaw allows unauthenticated attackers to perform SQL Injection attacks with significant consequences for the integrity, confidentiality, and availability of the targeted web application's database. By manipulating input fields that feed into these vulnerable actions, an attacker can inject malicious SQL commands that alter query logic, potentially extracting sensitive data such as user credentials, personal information stored in form submissions, or administrative details. In more severe scenarios, depending on the privileges granted to the database account used by the web application, attackers might be able to modify existing records, delete critical tables, or even execute operating system commands if specific database features are enabled and misconfigured. This level of access effectively compromises the entire backend infrastructure associated with the WordPress site, leading to potential data breaches and service disruption.
This vulnerability aligns closely with Common Weakness Enumeration identifier CWE-89, which classifies Improper Neutralization of Special Elements used in an SQL Command as a distinct category of injection flaws. The lack of proper escaping allows special characters like single quotes or semicolons to break out of the intended data context and execute as part of the command structure. Furthermore, from a tactical standpoint within the MITRE ATT&CK framework, this exploit maps directly to techniques associated with SQL Injection, specifically those categorized under Data Exfiltration via Database Query commands such as T1213 or T1059 depending on whether the goal is passive data theft or active command execution. The unauthenticated nature of the attack vector places it in a high-risk category because it requires no prior authentication step, significantly lowering the barrier to entry for malicious actors and increasing the likelihood of automated scanning tools detecting and exploiting this weakness across large segments of the internet hosting WordPress sites with this plugin installed.
To mitigate this vulnerability, immediate action is required by system administrators and developers managing instances of SAMO Forms. The primary remediation strategy involves updating the plugin to a patched version where these input handling flaws have been corrected through rigorous sanitization practices. If an update is not immediately available or applicable for legacy systems, temporary mitigations should be implemented at the web server level using Web Application Firewall rules that detect and block common SQL injection patterns in HTTP requests targeting the affected endpoints. Additionally, developers must ensure that all future integrations with database layers utilize parameterized queries or prepared statements rather than string concatenation to construct SQL commands. This architectural shift ensures that user input is always treated as data rather than executable code, thereby neutralizing the threat of injection attacks regardless of the content provided by the end-user. Regular security audits and static application security testing should also be integrated into the development lifecycle to prevent similar oversights in future releases.