CVE-2018-7290 in Tiki
Summary
by MITRE
Cross Site Scripting (XSS) exists in Tiki before 12.13, 15.6, 17.2, and 18.1.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 01/12/2020
Cross site scripting vulnerabilities represent one of the most prevalent and dangerous web application security flaws, allowing attackers to inject malicious scripts into web pages viewed by other users. The vulnerability identified as CVE-2018-7290 affects the Tiki wiki and content management system, specifically impacting versions prior to 12.13, 15.6, 17.2, and 18.1. This flaw enables malicious actors to execute arbitrary JavaScript code within the context of a victim's browser, potentially leading to session hijacking, data theft, or unauthorized actions performed on behalf of the user. The vulnerability stems from inadequate input validation and output encoding mechanisms within the Tiki application's handling of user-supplied data, particularly in areas where content is rendered without proper sanitization. According to CWE classification, this vulnerability maps to CWE-79 which specifically addresses cross-site scripting flaws where applications fail to properly validate or encode user input before incorporating it into dynamically generated web pages. The attack surface for this vulnerability extends across multiple Tiki functionalities including but not limited to comment sections, user profile fields, search queries, and content management features where user input is processed and displayed. Attackers can exploit this weakness by crafting malicious payloads that, when executed in a victim's browser, can steal session cookies, redirect users to malicious sites, or perform unauthorized administrative actions. The operational impact of CVE-2018-7290 is significant as it compromises the integrity of user sessions and can lead to complete account takeovers. The vulnerability aligns with ATT&CK technique T1059.007 which involves the use of scripting languages to execute malicious code in the victim's environment. Organizations running affected Tiki versions face potential exposure to credential theft, data manipulation, and unauthorized access to sensitive information. The risk is particularly elevated in environments where Tiki is used for collaborative content management, document sharing, or community forums where user-generated content is prevalent. Mitigation strategies should include immediate patching to the latest available versions, implementation of proper input validation and output encoding mechanisms, and deployment of web application firewalls to detect and block malicious script injections. Additionally, security teams should conduct comprehensive code reviews focusing on user input handling and establish robust monitoring procedures to detect potential exploitation attempts. The vulnerability demonstrates the critical importance of maintaining up-to-date software versions and implementing defense-in-depth strategies to protect against persistent web application threats. Organizations must also consider implementing content security policies and regular security assessments to identify and remediate similar vulnerabilities in their web applications.