CVE-2006-6119 in mmgallery
Summary
by MITRE
mmgallery 1.55 allows remote attackers to obtain sensitive information via a direct request for thumbs.php, which reveals the installation path in various error messages.
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Analysis
by VulDB Data Team • 04/29/2026
The vulnerability described in CVE-2006-6119 affects mmgallery version 1.55, a web-based media gallery application that allows users to manage and display digital images. This particular flaw represents a sensitive data exposure issue that occurs when the application fails to properly sanitize error messages returned to remote attackers. The vulnerability specifically manifests when attackers make direct requests to the thumbs.php script, which is typically used for generating thumbnail images from uploaded media files. The application's error handling mechanism does not adequately filter or obscure system-level information, leading to the disclosure of the application's installation path in error messages.
The technical nature of this vulnerability aligns with CWE-200, which defines weaknesses related to information exposure, and represents a classic case of sensitive information disclosure through error messages. When the thumbs.php script encounters an error condition, it inadvertently reveals the full server path where mmgallery is installed, including directory structures and file locations. This type of information disclosure provides attackers with critical reconnaissance data that can be used to plan more sophisticated attacks against the system. The vulnerability is particularly concerning because it requires no authentication or privileged access to exploit, making it accessible to any remote attacker who can reach the web application.
The operational impact of this vulnerability extends beyond simple information disclosure, as it significantly weakens the security posture of systems running affected mmgallery installations. The leaked installation path can be used by attackers to understand the application's architecture, identify potential attack vectors, and plan targeted exploitation attempts. This information disclosure can facilitate further attacks such as directory traversal, local file inclusion, or other path-based vulnerabilities that rely on knowledge of the application's file structure. The vulnerability also violates fundamental security principles of least privilege and defense in depth, as it exposes internal system details that should remain hidden from external entities.
Mitigation strategies for this vulnerability should focus on implementing proper error handling and input validation within the mmgallery application. System administrators should ensure that error messages do not contain sensitive path information or system details that could aid attackers in their reconnaissance efforts. The application should be configured to display generic error messages to end users while logging detailed technical information internally for administrators. Additionally, the vulnerability highlights the importance of following secure coding practices that prevent information leakage through error conditions, aligning with ATT&CK technique T1212 which covers the exploitation of information disclosure vulnerabilities. Organizations should also consider implementing web application firewalls and security monitoring solutions that can detect and block suspicious requests targeting known vulnerable scripts. The most effective long-term solution involves updating to a patched version of mmgallery or migrating to a more secure alternative that properly handles error conditions and does not expose sensitive system information through its user-facing interfaces.