CVE-2018-19090

Vulnerability

The article management module in tianti 2.3 is vulnerable to stored cross-site scripting (XSS). An attacker can inject arbitrary JavaScript code through the article title field. The application stores the malicious input without proper sanitization or encoding, and the payload is later rendered in the browser of any administrator who views the article list. This vulnerability exists because user_list.jsp (and by similarity the article management views) directly outputs values received from the controller without defensive measures [1].

Exploitation

An attacker must have access to the article management module, which typically requires a valid administrator account. The attacker crafts a malicious article title containing a JavaScript payload (e.g., ">) and submits it via the article creation or edit form. When other administrative users browse the article list page, the stored payload executes in their browsers [1].

Impact

Successful exploitation results in stored XSS, allowing the attacker to execute arbitrary JavaScript in the context of the victim's session. This can lead to cookie disclosure, session hijacking, and privilege escalation within the tianti admin panel, as the attacker can perform administrative actions on behalf of the victim [1].

Mitigation

As of the available references, no official patch has been disclosed. The vendor was notified via the GitHub issue #27 [1]. Users should implement input validation and output encoding for all user-supplied data displayed in the admin interface, especially in the article title field. Upgrading to a future patched version is recommended once available.