Platform
ibm
Component
content-navigator
Fixed in
1.11.1
3.1.1
3.2.1
CVE-2026-1243 is a cross-site scripting (XSS) vulnerability affecting IBM Content Navigator. This flaw allows an authenticated user to inject arbitrary JavaScript code into the web UI, potentially leading to credential disclosure within a trusted session. The vulnerability affects versions 3.0.15 through 3.2.0 of IBM Content Navigator. No official patch is currently available.
CVE-2026-1243 in IBM Content Navigator versions 3.0.15, 3.1.0, and 3.2.0 represents a significant security risk due to a Cross-Site Scripting (XSS) vulnerability. An authenticated user can exploit this vulnerability to inject malicious JavaScript code into the application's web UI. Execution of this code can alter the intended functionality of Content Navigator, potentially allowing an attacker to steal credentials within a trusted session. This could result in unauthorized access to sensitive information and data manipulation. The absence of a fix available exacerbates the situation, requiring careful assessment and alternative mitigation measures.
The XSS vulnerability in IBM Content Navigator is triggered when an authenticated user can inject JavaScript code into the web UI. This code executes in the context of the user's browser, allowing the attacker to access sensitive information, such as session cookies or authentication tokens. Successful exploitation of this vulnerability could allow an attacker to impersonate a legitimate user and access protected resources. The risk is heightened if Content Navigator is used to store or process confidential information. The lack of an official fix implies that attackers may actively seek ways to exploit this vulnerability, especially if detailed information on how to do so becomes public.
Exploit Status
EPSS
0.03% (8% percentile)
CISA SSVC
CVSS Vector
Given that there is no official fix for CVE-2026-1243, implementing alternative mitigation measures to reduce the risk is recommended. These measures include the strict enforcement of access controls, thorough validation of all user inputs, and continuous monitoring of system activity for signs of exploitation. Considering an upgrade to a later version of IBM Content Navigator, if available, is crucial. Additionally, implementing Content Security Policy (CSP) can help mitigate the impact of XSS attacks by restricting the sources of JavaScript that can be executed in the browser. User security awareness training is also essential.
Actualice IBM Content Navigator a una versión que no sea vulnerable a Cross-Site Scripting (XSS). Consulte el advisory de IBM para obtener instrucciones específicas sobre la actualización.
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XSS is a type of web security vulnerability that allows an attacker to inject malicious code (typically JavaScript) into web pages viewed by other users.
Authentication is necessary because the vulnerability requires the attacker to act as an already authenticated user in the system.
Implement the mitigation measures described, including strict access controls, input validation, and system activity monitoring. Consider upgrading to a later version if available.
There are web security analysis tools that can help identify XSS vulnerabilities, but their effectiveness may vary.
Implement Content Security Policy (CSP), validate all user inputs, and educate your users about the risks of XSS attacks.
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