CVE-2016-10143 in Wiki CMS
Summary
by MITRE
A vulnerability in Tiki Wiki CMS 15.2 could allow a remote attacker to read arbitrary files on a targeted system via a crafted pathname in a banner URL field.
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Analysis
by VulDB Data Team • 05/14/2026
The vulnerability identified as CVE-2016-10143 resides within Tiki Wiki CMS version 15.2, representing a critical security flaw that enables remote attackers to execute arbitrary file read operations. This issue manifests through manipulation of the banner URL field, where crafted pathnames can be exploited to access sensitive files on the target system. The vulnerability stems from insufficient input validation and improper sanitization of user-supplied data within the banner functionality, creating an avenue for path traversal attacks that bypass normal access controls.
This weakness fundamentally compromises the system's file access controls and represents a classic path traversal vulnerability that aligns with CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory. The attack vector operates through the manipulation of URL parameters that are processed by the Tiki Wiki CMS application, allowing an attacker to navigate the filesystem beyond intended boundaries. The vulnerability is particularly dangerous because it requires minimal privileges to exploit and can potentially expose sensitive system files, configuration data, database credentials, or application source code that could be leveraged for further attacks.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can serve as a stepping stone for more sophisticated attacks within the compromised environment. An attacker could potentially access critical system files, user databases, application configuration files, or even administrative interfaces that might be protected by standard access controls. The remote nature of the exploit means that attackers do not require physical access or local system privileges to leverage this vulnerability, making it particularly attractive for automated exploitation campaigns. This vulnerability also aligns with ATT&CK technique T1083 (File and Directory Discovery) and T1566 (Phishing with Social Engineering) as it enables reconnaissance activities and can be combined with social engineering tactics to maximize impact.
Mitigation strategies for CVE-2016-10143 should focus on immediate patching of the Tiki Wiki CMS application to version 15.3 or later, which contains the necessary fixes for this vulnerability. Organizations should also implement input validation and sanitization measures for all user-supplied data, particularly within URL fields and file path parameters. Network-level protections such as web application firewalls can provide additional layers of defense by monitoring and blocking suspicious path traversal patterns. Access controls should be reviewed to ensure that the principle of least privilege is maintained, and sensitive files should be properly secured with appropriate permissions. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other applications and systems, as path traversal issues remain common across various web platforms and frameworks.