Platform
php
Component
simple-it-discussion-forum
Fixed in
1.0.1
CVE-2026-5826 describes a cross site scripting (XSS) vulnerability discovered in Simple IT Discussion Forum. This flaw allows attackers to inject malicious scripts into the forum, potentially compromising user accounts or defacing the website. The vulnerability specifically affects versions 1.0.0 through 1.0 of the software. An exploit for this vulnerability has been published, increasing the risk of exploitation.
A Cross-Site Scripting (XSS) vulnerability has been identified in Simple IT Discussion Forum version 1.0 (CVE-2026-5826). This vulnerability resides in the processing of the /edit-category.php file, specifically in the manipulation of the 'Category' argument. A remote attacker can inject malicious code that will execute in the browser of other users when accessing the vulnerable page. This could allow the attacker to steal cookies, redirect users to malicious websites, or perform actions on behalf of the affected user. The public disclosure of an exploit significantly increases the risk, as it facilitates exploitation by malicious actors with varying levels of technical skill. The lack of a fix or patch available further exacerbates the situation, leaving users exposed to this risk.
The CVE-2026-5826 vulnerability in Simple IT Discussion Forum 1.0 is exploited through the manipulation of the 'Category' parameter in the /edit-category.php file. An attacker can construct a malicious URL containing injected JavaScript code within this parameter. Upon accessing this URL, the affected user's browser will execute the malicious code, allowing the attacker to perform unauthorized actions. The availability of a public exploit means that attackers can easily replicate this attack without needing a deep understanding of the vulnerability. This increases the risk of automated and targeted attacks against vulnerable systems.
Exploit Status
EPSS
0.01% (1% percentile)
CISA SSVC
CVSS Vector
Given that no official fix has been provided by the Simple IT Discussion Forum developer, immediate preventative measures are recommended. The first step is to disable or remove the /edit-category.php functionality if it is not essential. If maintaining the functionality is necessary, rigorous validation and sanitization of the 'Category' argument input must be implemented to prevent malicious code injection. This includes using appropriate escaping functions for the context in which the input is displayed. Additionally, monitoring server logs for suspicious activity and applying web security best practices, such as implementing a Content Security Policy (CSP), are recommended. Upgrading to a more secure version of the software, if available in the future, would be the definitive solution.
Actualice el plugin Simple IT Discussion Forum a la última versión disponible para mitigar la vulnerabilidad de Cross-Site Scripting (XSS). Verifique la fuente oficial del plugin para obtener instrucciones de actualización y parches de seguridad. Implemente validación y escape adecuados de la entrada del usuario en el archivo /edit-category.php para prevenir futuros ataques XSS.
Vulnerability analysis and critical alerts directly to your inbox.
XSS (Cross-Site Scripting) is a security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users.
If you are using Simple IT Discussion Forum 1.0, you are likely vulnerable. Perform penetration testing or use vulnerability scanning tools.
Immediately change all user passwords and monitor server logs for suspicious activity.
Disabling or removing the /edit-category.php functionality is a temporary solution. Rigorous input validation can also help.
You can find more information about CVE-2026-5826 on vulnerability databases such as the National Vulnerability Database (NVD).
Upload your dependency file and we'll tell you instantly if this and other CVEs hit you.