CVE-2016-20063 in Single Personal Message
Summary
by MITRE • 06/09/2026
Single Personal Message 1.0.3 contains an SQL injection vulnerability that allows authenticated users to execute arbitrary SQL queries by injecting malicious code through the message parameter. Attackers can access the admin interface and supply crafted SQL statements in the message parameter to extract sensitive database information including user credentials and site configuration data.
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Analysis
by VulDB Data Team • 08/02/2026
This vulnerability exists within Single Personal Message version 1.0.3, representing a critical sql injection flaw that compromises the application's data integrity and confidentiality. The vulnerability stems from insufficient input validation and sanitization of the message parameter, which allows authenticated users to inject malicious sql code directly into the application's database layer. When an attacker submits crafted sql statements through this parameter, the application fails to properly escape or parameterize the input before executing database queries, creating a direct pathway for unauthorized data access and manipulation.
The technical exploitation of this vulnerability follows established patterns documented in cwe-89 sql injection attacks, where user-supplied data flows directly into sql command execution contexts. This particular implementation flaw enables attackers with legitimate user accounts to escalate their privileges and access administrative functions that should otherwise be restricted. The vulnerability's impact extends beyond simple data theft, as it provides attackers with the ability to extract complete user credential databases including hashed passwords, administrative access tokens, and sensitive site configuration parameters that could facilitate further compromise of the underlying infrastructure.
From an operational perspective, this vulnerability creates a significant risk for organizations relying on the Single Personal Message application, as authenticated users can leverage their existing access to perform unauthorized database operations. The attack vector is particularly concerning because it requires minimal additional privileges beyond legitimate user access, making detection more difficult and increasing the potential for prolonged unauthorized access. According to attack techniques outlined in the mitre att&ck framework under tactic t1078 valid accounts and t1213 credential access, this vulnerability enables adversaries to move laterally within the application environment and extract valuable information that could be used for broader network infiltration.
The mitigation strategy should prioritize immediate implementation of parameterized queries and input validation mechanisms to prevent sql injection attacks. Organizations must ensure all user-supplied data undergoes proper sanitization before database processing, implementing prepared statements or stored procedures wherever possible. Additionally, access controls should be strengthened to limit the scope of actions available to authenticated users, while comprehensive logging and monitoring systems should be deployed to detect anomalous database query patterns that might indicate exploitation attempts. Regular security assessments and code reviews focusing on sql injection prevention techniques should become standard practice to prevent similar vulnerabilities from emerging in future application versions.