CVE-2025-1175 in Visio 1
Summary
by MITRE • 02/10/2025
Reflected Cross-Site Scripting (XSS) vulnerability in Kelio Visio 1, Kelio Visio X7 and Kelio Visio X4, in versions between 3.2C and 5.1K. This vulnerability could allow an attacker to execute a JavaScript payload by making a POST request and injecting malicious code into the editable ‘username’ parameter of the ‘/PageLoginVisio.do’ endpoint.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 02/10/2025
This reflected cross-site scripting vulnerability exists within the Kelio Visio software suite affecting versions 3.2C through 5.1K across multiple product lines including Kelio Visio 1, Kelio Visio X7, and Kelio Visio X4. The flaw manifests in the authentication endpoint at /PageLoginVisio.do where user input validation is insufficient to prevent malicious code execution. The vulnerability specifically targets the editable username parameter which serves as an injection vector for attackers seeking to exploit this weakness. The reflected nature of this XSS vulnerability means that malicious payloads are executed in the context of the victim's browser when they access a specially crafted URL containing the injected script. This vulnerability represents a critical security risk as it enables attackers to perform actions on behalf of authenticated users without their knowledge or consent.
The technical exploitation of this vulnerability follows a standard XSS attack pattern where an attacker crafts a malicious payload and delivers it through a POST request to the vulnerable endpoint. The username parameter, which should only accept legitimate user credentials, becomes a conduit for JavaScript code injection. When the application reflects this malicious input back to the user's browser without proper sanitization or encoding, the injected script executes in the victim's context. This creates a persistent threat vector that can be used to steal session cookies, redirect users to malicious sites, or perform unauthorized actions within the application. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications, and represents a classic example of how inadequate input validation can lead to severe security consequences.
The operational impact of this vulnerability extends beyond simple script execution to encompass potential complete compromise of user sessions and sensitive data exposure. Attackers could leverage this weakness to hijack user sessions, access restricted functionality, or exfiltrate confidential information from the Kelio Visio environment. The reflected nature of the vulnerability makes it particularly dangerous as it can be delivered through various attack vectors including phishing emails, compromised websites, or social engineering campaigns. Organizations using affected Kelio Visio versions face significant risk of unauthorized access to their scheduling and calendar systems, potentially leading to business disruption and data breaches. The vulnerability also poses risks to enterprise environments where Kelio Visio integrates with other systems, as successful exploitation could serve as a stepping stone for further attacks within the network infrastructure.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms at the application level. The most effective immediate solution involves sanitizing all user inputs, particularly the username parameter in the authentication endpoint, by removing or encoding potentially dangerous characters such as angle brackets, quotes, and script tags. Implementing proper Content Security Policy headers can provide additional protection against script execution in the browser context. Organizations should also consider deploying web application firewalls to detect and block malicious requests targeting the vulnerable endpoint. Regular security updates and patches should be applied immediately upon availability from the vendor, as this vulnerability represents a critical risk that requires urgent remediation. Additionally, implementing multi-factor authentication can provide defense-in-depth protection even if the XSS vulnerability is successfully exploited. The ATT&CK framework categorizes this vulnerability under T1059.007 for scripting and T1531 for credential access, highlighting the need for comprehensive security controls that address both exploitation techniques and prevention mechanisms.