CVE-2017-20249 in Slider Gallery
Summary
by MITRE • 06/09/2026
Apptha Slider Gallery 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the albid parameter. Attackers can send GET requests with crafted SQL payloads in the albid parameter to extract sensitive database information including user credentials and authentication hashes.
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Analysis
by VulDB Data Team • 06/09/2026
The Apptha Slider Gallery version 1.0 contains a critical sql injection vulnerability that represents a significant threat to web application security and data integrity. This vulnerability exists within the application's parameter handling mechanism, specifically affecting the albid parameter which is processed without adequate input validation or sanitization. The flaw allows unauthenticated attackers to exploit the application's database interface directly through crafted http get requests, bypassing normal authentication mechanisms and access controls. The vulnerability stems from improper parameter binding and input sanitization practices that permit malicious sql code to be executed within the database context, effectively granting attackers direct access to underlying database structures and stored information. This type of vulnerability falls under the common weakness enumeration category of cwe-89 sql injection, which is classified as a high-risk security flaw according to industry security standards and best practices.
The operational impact of this vulnerability extends beyond simple data extraction to encompass complete database compromise and potential system infiltration. Attackers can leverage the sql injection to extract sensitive user credentials, authentication hashes, and other confidential information stored within the database. The vulnerability allows for arbitrary sql query execution, meaning attackers can perform read operations to extract data, write operations to modify records, and even execute destructive commands that could compromise the entire database system. This creates a pathway for persistent threats to establish footholds within the application environment and potentially escalate privileges to gain broader system access. The vulnerability's exploitation requires minimal technical expertise and can be automated, making it particularly dangerous for widespread compromise. According to the attack technique framework, this represents a direct database access attack vector that aligns with techniques described in the attack pattern taxonomy under database injection methods.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security architecture improvements. The primary fix involves implementing proper parameterized queries and input validation for all user-supplied parameters including the albid parameter. Applications should employ prepared statements with proper binding mechanisms to ensure that user input cannot alter the sql query structure. Additionally, input sanitization measures including character set filtering and length restrictions should be implemented to prevent malicious payloads from reaching the database layer. The system should also incorporate comprehensive logging and monitoring to detect suspicious sql query patterns and unauthorized database access attempts. Security patches should be applied immediately to address the vulnerability, and regular security assessments should be conducted to identify similar flaws in other application components. Network level protections including web application firewalls and database access controls can provide additional defense in depth layers. Organizations should also implement principle of least privilege access controls for database accounts and regularly audit database access logs to identify potential unauthorized activities. The vulnerability demonstrates the critical importance of input validation and parameterized queries in preventing sql injection attacks, aligning with industry standards such as owasp top ten and iso 27001 security requirements for secure application development practices.