CVE-2026-23797: Quick.Cart Information Disclosure Flaw

CVE-2026-23797 Overview

CVE-2026-23797 is a sensitive data exposure vulnerability in Quick.Cart, an e-commerce platform developed by OpenSolution. The vulnerability stems from insecure password storage practices where user passwords are stored in plaintext form rather than being properly hashed. An attacker with high privileges (such as an administrator) can view users' passwords directly through the user editing page within the application's administrative interface.

This vulnerability represents a significant security weakness classified under CWE-256 (Plaintext Storage of a Password). While exploitation requires elevated privileges, successful exploitation could lead to widespread credential theft and account compromise across the entire user base.

Critical Impact

Plaintext password storage allows privileged attackers to harvest all user credentials, potentially enabling account takeover attacks across multiple platforms where users may have reused passwords.

Affected Products

• Quick.Cart version 6.7 (confirmed vulnerable)
• Other versions of Quick.Cart (potentially vulnerable - not tested)

Discovery Timeline

• 2026-02-05 - CVE CVE-2026-23797 published to NVD
• 2026-02-05 - Last updated in NVD database

Technical Details for CVE-2026-23797

Vulnerability Analysis

The vulnerability exists within Quick.Cart's user management functionality where passwords are stored without cryptographic protection. Modern security best practices mandate that passwords should never be stored in plaintext or with reversible encryption. Instead, they should be hashed using strong, one-way cryptographic algorithms such as bcrypt, Argon2, or PBKDF2 with appropriate salt values.

In the case of Quick.Cart version 6.7, when an administrator navigates to the user editing page, the application retrieves and displays the user's password in its original plaintext form. This behavior indicates that the underlying database stores passwords without any hashing mechanism, creating a severe security weakness.

The network-based attack vector allows remote exploitation by any attacker who has gained administrative access to the Quick.Cart installation, whether through legitimate means, credential stuffing, or other privilege escalation techniques.

Root Cause

The root cause of this vulnerability is the failure to implement proper password hashing during user registration and password update operations. The application's design stores user-submitted passwords directly in the database without applying any cryptographic transformation. This is a fundamental security design flaw that violates established password storage guidelines such as OWASP recommendations.

Additionally, the user editing interface was designed to display the stored password value, further compounding the issue by making credential extraction trivial for any user with administrative access.

Attack Vector

The attack scenario requires an attacker to first obtain administrative privileges within the Quick.Cart application. Once authenticated as an administrator, the attacker can:

1. Navigate to the administrative panel's user management section
2. Select any user account for editing
3. View the plaintext password displayed in the user editing form
4. Harvest credentials for all users in the system

This attack is particularly dangerous because administrators may be malicious insiders, or administrative credentials may have been compromised through phishing, credential stuffing, or other attacks. The plaintext storage ensures that any administrative access breach results in complete exposure of all user credentials.

Detection Methods for CVE-2026-23797

Indicators of Compromise

• Unusual administrative access patterns to user management pages
• Bulk access to user profile editing pages in rapid succession
• Administrative sessions accessing multiple user accounts without corresponding legitimate business needs
• Database queries retrieving password fields being executed more frequently than typical operations

Detection Strategies

• Monitor administrative panel access logs for anomalous user editing activity
• Implement alerts for administrative accounts accessing unusually high numbers of user profiles
• Review database audit logs for SELECT queries against user password columns
• Deploy user behavior analytics to detect credential harvesting patterns

Monitoring Recommendations

• Enable comprehensive logging for all administrative actions within Quick.Cart
• Implement session monitoring for administrative users with alerts on suspicious activity
• Configure database auditing to track access to sensitive user credential tables
• Establish baseline administrative behavior to identify deviations indicative of compromise

How to Mitigate CVE-2026-23797

Immediate Actions Required

• Audit administrative account access and revoke unnecessary privileges
• Review logs for any indication that user credentials may have been accessed
• Consider notifying users to change their passwords on Quick.Cart and any other platforms where they may have reused credentials
• Implement additional access controls around the user management functionality if possible
• Evaluate migration to an alternative e-commerce platform with proper security practices

Patch Information

The vendor (OpenSolution) was notified about this vulnerability but did not respond with details regarding a fix or vulnerable version range. Only version 6.7 was tested and confirmed vulnerable. Users should monitor the OpenSolution Quick.Cart website for security updates and patches. Additional information may be available from CERT.PL's vulnerability disclosure.

Workarounds

• Restrict administrative access to only essential trusted personnel
• Implement network-level restrictions to limit administrative interface access to specific IP addresses
• Consider deploying a web application firewall (WAF) to monitor and restrict access to sensitive administrative endpoints
• If source code access is available, modify the application to hash passwords using bcrypt or Argon2 before storage and remove password display from the editing interface
• Implement additional authentication factors for administrative accounts to reduce the risk of compromise