CVE-2025-56676
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-30

Last updated on: 2025-10-18

Assigner: MITRE

Description
TitanSystems Zender v3.9.7 contains an account takeover vulnerability in its password reset functionality. A temporary password or reset token issued to one user can be used to log in as another user, due to improper validation of token-user linkage. This allows remote attackers to gain unauthorized access to any user account by exploiting the password reset mechanism. The vulnerability occurs because the reset token is not correctly bound to the requesting account and is accepted for other user emails during login, enabling privilege escalation and information disclosure.
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Meta Information
Published
2025-09-30
Last Modified
2025-10-18
Generated
2026-06-16
AI Q&A
2025-09-30
EPSS Evaluated
2026-06-15
NVD
CVE-2025-56676
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
titansystems zender 3.9.7
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-1259 The System-On-A-Chip (SoC) implements a Security Token mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. However, the Security Tokens are improperly protected.
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Executive Summary

CVE-2025-56676 is a critical vulnerability in TitanSystems Zender v3.9.7's password reset functionality. The system issues a temporary password or reset token when a user requests a password reset, but this token is not properly linked to the requesting user's account. Because of this improper validation, an attacker can use a temporary password issued to one user to log into any other user's account by providing that user's email address. This flaw allows unauthorized account takeover, including accounts with administrative privileges. [1]

Impact Analysis

This vulnerability can allow remote attackers to gain unauthorized access to any user account on the Zender platform, including administrative accounts. This means attackers can escalate privileges, access sensitive information, manipulate data, and potentially disrupt services or operations that rely on the affected accounts. [1]

Detection Guidance

Detection of this vulnerability involves monitoring for unusual password reset token usage patterns, such as a single reset token being used to log into multiple different user accounts. Since the vulnerability allows a reset token issued to one user to be used for other accounts, commands or scripts that analyze authentication logs for multiple logins with the same reset token or temporary password across different user emails can help detect exploitation attempts. Specific commands depend on the system's logging setup, but generally, searching authentication logs for reset token reuse or anomalous login patterns is recommended. [1]

Mitigation Strategies

Immediate mitigation steps include disabling or restricting the password reset functionality until a patch or fix is applied, enforcing strict validation to ensure reset tokens are bound to the requesting user's account, and monitoring for suspicious login activity. Additionally, informing users to be cautious with password reset emails and tokens, and applying any available updates or patches from TitanSystems for Zender version 3.9.7 or earlier is critical. [1]

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