Overview
A reflected Cross-Site Scripting (XSS) vulnerability, identified as CVE-2025-63243, has been discovered in Pixeon WebLaudos 25.1 (01). This vulnerability resides within the password change functionality of the application and poses a significant risk to user security.
Technical Details
The vulnerability is located in the loginAlterarSenha.asp file, specifically within the handling of the sle_sSenha parameter. An attacker can craft a malicious URL containing JavaScript code within the sle_sSenha parameter. When a victim clicks on this crafted URL, the injected JavaScript code executes within their browser, in the security context of the Pixeon WebLaudos application.
CVSS Analysis
Currently, the CVSS score is not available (N/A). However, given the nature of reflected XSS vulnerabilities and the sensitive context of password change functionality, it is anticipated to be a high-severity issue once a score is assigned.
Possible Impact
The successful exploitation of this XSS vulnerability can lead to several severe consequences:
- Session Hijacking: Attackers can steal session cookies, gaining unauthorized access to the victim’s account.
- Sensitive Information Disclosure: Malicious scripts can access and transmit sensitive information stored within the browser.
- Unauthorized Actions: Attackers can perform actions on behalf of the victim, such as changing account settings or initiating transactions.
- Phishing Attacks: The vulnerability can be used to conduct phishing attacks by redirecting users to fake login pages or displaying deceptive content.
Mitigation and Patch Steps
Users and administrators of Pixeon WebLaudos 25.1 (01) are strongly advised to take the following steps:
- Apply the Patch: Check the Pixeon website for security updates and patches specifically addressing CVE-2025-63243. Install the patch immediately upon release.
- Input Validation: If patching is not immediately possible, implement robust input validation on the server-side for the
sle_sSenhaparameter in theloginAlterarSenha.aspfile. Sanitize user input to prevent the execution of malicious JavaScript code. - Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) and configure it to block XSS attacks. Regularly update the WAF rules to address emerging threats.
- User Awareness: Educate users about the risks of clicking on suspicious links and the importance of verifying the legitimacy of URLs.
