CVE-2025-71455 in vtenext
Summary
by MITRE • 11/04/2026
vtenext before 25.02.2 contains a session identifier disclosure vulnerability that allows attackers to read the PHPSESSID value returned by the Touch web service endpoint. Attackers who can run script in the vtenext origin, such as through cross-site scripting, can bypass the HttpOnly flag and hijack authenticated sessions.
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Analysis
by VulDB Data Team • 11/04/2026
The vulnerability identified in versions of vtenext prior to 25.02.2 represents a critical failure in session management security, specifically involving the improper handling of sensitive authentication tokens within web service endpoints. This flaw allows for the disclosure of the PHPSESSID value through the Touch web service endpoint, which serves as an interface for mobile or touch-enabled clients interacting with the application. The core technical issue lies in how the server responds to requests made via this specific endpoint; rather than adhering to standard security practices that restrict access to session identifiers based on origin and protocol constraints, the system exposes these values in a manner that is accessible to malicious scripts operating within the same domain context. This exposure undermines the fundamental assumption of isolation between client-side script execution and sensitive cookie data, creating a pathway for attackers to extract credentials or session tokens directly from the browser environment without requiring server-side exploitation techniques beyond initial code injection capabilities.
The operational impact of this vulnerability is severe because it facilitates authenticated session hijacking when combined with cross-site scripting vulnerabilities within the vtenext application. An attacker who successfully injects malicious JavaScript into a page viewed by an authenticated user can execute scripts that read the PHPSESSID cookie value, effectively bypassing the HttpOnly flag if the implementation or browser configuration allows such access through specific API methods or misconfigurations associated with the Touch endpoint. Once the session identifier is obtained, the attacker can impersonate the legitimate user by sending requests to the application using this stolen token. This leads to unauthorized access to sensitive business data, potential modification of records within the CRM system, and a complete compromise of the confidentiality and integrity assurances provided by the authentication mechanism. The ability to hijack sessions means that any privileges associated with the compromised account are transferred to the attacker, potentially leading to further lateral movement or privilege escalation depending on the victim's role within the organization.
From a classification perspective, this vulnerability aligns closely with CWE-614, which describes the session identifier being included in URLs or exposed through insecure means, and more specifically relates to CWE-523 regarding unprotected transport of sensitive information if the exposure occurs over unencrypted channels, though here the primary vector is client-side extraction. In terms of adversary behavior as defined by the MITRE ATT&CK framework, this vulnerability supports techniques categorized under T1078, Valid Accounts, where attackers leverage stolen credentials or session tokens to maintain access and evade detection mechanisms that rely on traditional credential theft methods. It also intersects with T1539, Steal Web Session Cookie, highlighting the direct objective of acquiring authentication artifacts from client-side storage. The combination of these factors creates a high-risk scenario where even basic script injection flaws can escalate into full account compromise due to the lack of robust separation between service endpoints and session management protocols.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. The primary corrective action is to upgrade vtenext to version 25.02.2 or later, where this specific disclosure flaw in the Touch web service endpoint has been addressed by developers who likely implemented stricter checks on session token retrieval operations. In addition to upgrading, organizations should ensure that all cookies containing sensitive identifiers are marked with both HttpOnly and Secure flags; while the vulnerability description suggests bypassing of HttpOnly is possible via script execution through this specific endpoint, reinforcing these attributes remains a baseline security requirement. Furthermore, implementing strict Content Security Policy headers can help mitigate cross-site scripting vectors by restricting the sources from which scripts can execute and preventing unauthorized data exfiltration attempts. Regular security audits focusing on session management practices and input validation for web services are essential to prevent similar vulnerabilities in other parts of the application stack.