CVE-2026-103766 in ClipBucket
Summary
by MITRE • 10/02/2026
ClipBucket v5 through 5.5.3-#197 contains an sql injection vulnerability that allows authenticated users with ad_manager_access permission to inject SQL via the delete parameter in admin_area/ads_manager.php. Attackers can supply time-based blind payloads concatenated into AdsManager::DeleteAd queries to extract user credentials and emails or modify and delete arbitrary records.
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Analysis
by VulDB Data Team • 10/02/2026
ClipBucket versions 5 through 5.5.3-#197 contain a critical SQL injection vulnerability within the administrative interface, specifically located in the ads_manager.php module. This flaw is classified under CWE-89 as Improper Neutralization of Special Elements used in an SQL Command and aligns with MITRE ATT&CK technique T1059.004 for command scripting via database interaction. The vulnerability arises from insufficient input validation and sanitization when processing the delete parameter passed to the AdsManager::DeleteAd function. Although this is not a remote unauthenticated attack vector, it represents a significant risk because it allows authenticated users who possess ad_manager_access permissions to manipulate backend database operations directly through crafted HTTP requests.
The technical mechanism of exploitation involves injecting time-based blind SQL payloads into the delete parameter. Because the application fails to properly escape or validate user-supplied input before incorporating it into SQL queries, an attacker can append malicious SQL code that alters the logic of the original DELETE statement. By utilizing time-based techniques such as SLEEP() functions in MySQL or WAITFOR DELAY in Microsoft SQL Server, attackers can confirm the presence of the vulnerability and subsequently extract sensitive data character by character based on response times. This method is particularly effective because it does not rely on error messages being displayed to the user, making detection by standard application logs more difficult without specialized monitoring tools.
The operational impact of this vulnerability extends beyond simple data exfiltration. An attacker with ad_manager_access can use these injection capabilities to read arbitrary tables from the database, potentially extracting administrator credentials, email addresses, and other personally identifiable information stored in user profiles or configuration files. Furthermore, the ability to modify SQL queries allows for more destructive actions such as updating existing records to escalate privileges or deleting critical data related to advertising campaigns and platform settings. This compromises the integrity of the ClipBucket video sharing platform and can lead to service disruption if essential database entries are removed.
Mitigation strategies must focus on both immediate remediation and long-term secure coding practices. The most effective solution is to upgrade ClipBucket to a version where this vulnerability has been patched, ensuring that all administrative modules undergo rigorous security testing. In the interim, administrators should restrict ad_manager_access permissions to only those users who absolutely require them, adhering to the principle of least privilege. Additionally, implementing Web Application Firewalls with specific rules for detecting SQL injection patterns in POST parameters can provide a layer of defense against exploitation attempts. Developers must also ensure that all database interactions utilize parameterized queries or prepared statements rather than string concatenation to build SQL commands, which would inherently prevent injection attacks regardless of the input content.