Appsecure logo

CVE-2026-0591: Low Vulnerability in Fabian Online Product Reservation System

CVE-2026-0591 presents a low-severity SQL injection vulnerability in the Fabian Online Product Reservation System 1.0. Organizations should assess their exposure and schedule remediation accordingly.

LOWCVSS 2.1 · Published January 5, 2026

Not a customer? See how AppSecure simulates real world attacks to protect your infrastructure.

Speak to Experts

CVE-2026-0591 is a vulnerability identified in the Fabian Online Product Reservation System version 1.0. This vulnerability allows for SQL injection through manipulation of the 'id' and 'qty' arguments in the file /app/checkout/update.php, which is a component of the Cart Update Handler. The vulnerability can be exploited remotely, creating a potential risk for affected systems.

The current CVSS score for this vulnerability is 2.1, classifying it as low severity. While this score indicates a lower risk level compared to critical vulnerabilities, it is essential for organizations using this system to remain vigilant. SQL injection vulnerabilities can lead to unauthorized access and manipulation of database contents, potentially exposing sensitive data.

Organizations should assess their exposure to this vulnerability, especially if they rely on the affected software. Although the exploit is not widely used, it is publicly available, which raises concerns about possible attacks. Prompt action is recommended to mitigate any potential risks.

Urgency for defenders is moderate. Organizations should schedule remediation in their patch cycles to address this vulnerability and prevent potential exploitation.

Vulnerability Details

The vulnerability allows for SQL injection through the Cart Update Handler of the Fabian Online Product Reservation System. The affected file, /app/checkout/update.php, can be manipulated via HTTP requests. The CWE classifications associated with this vulnerability are CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) and CWE-89 (SQL Injection).

The vulnerability has a CVSS score of 2.1, indicating low severity, with an attack vector classified as NETWORK and low attack complexity. The impact on confidentiality, integrity, and availability is also rated as low, confirming the relatively low risk posed by this vulnerability.

Technical Analysis

The root cause of this vulnerability stems from insufficient input validation on the arguments 'id' and 'qty.' Attackers may leverage this weakness to execute arbitrary SQL queries, which can lead to unauthorized access to database contents. The attack vector is network-based, requiring no user interaction, and only low privileges are needed to exploit the vulnerability.

The attack complexity is low, making this vulnerability easier to exploit. The potential impact on confidentiality, integrity, and availability is also low, but successful exploitation could allow attackers to manipulate data within the database.

Risk & Impact Analysis

Organizations using the affected version of the Fabian Online Product Reservation System face potential risks associated with this vulnerability. While the overall severity is low, the possibility of SQL injection attacks should not be dismissed. The blast radius of such an attack could lead to significant data loss or corruption, especially if sensitive user information is stored in the database.

Given the low CVSS score, urgency for remediation can be classified as moderate. Organizations should schedule remediation within their patch cycles to address this vulnerability and minimize potential threats.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The affected product is the Fabian Online Product Reservation System, specifically version 1.0. All versions prior to the vendor patch should be considered vulnerable.

Mitigation & Remediation

Organizations are advised to update to the latest version of the Fabian Online Product Reservation System to mitigate this vulnerability. If a patch is not available, consider implementing input validation to sanitize user inputs for the affected parameters. Additionally, network controls can help limit access to the vulnerable component.

For further guidance on penetration testing, organizations can refer to the penetration testing services offered by AppSecure.

Detection Guidance

To detect potential exploitation attempts, organizations should monitor logs for unusual activity related to the /app/checkout/update.php file. Behavioral anomalies, such as unexpected database queries or modifications, should also be flagged for further investigation.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2026-0591 lies in the persistent prevalence of SQL injection vulnerabilities across various applications. Security teams should take this as an opportunity to enhance their input validation processes and develop more robust security protocols to prevent similar vulnerabilities in the future.

This vulnerability highlights the importance of regular security assessments and proactive vulnerability management. To assist in this effort, organizations can refer to the following resources: vulnerability management program, penetration testing methodology, and API penetration testing guide to establish a comprehensive security framework.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

Latest CVEs. Recently published vulnerabilities from the NVD database.

View all vulnerabilities
CVE IDSeverity
CVE-2025-65418HIGH
CVE-2025-65417MEDIUM
CVE-2025-65416MEDIUM
CVE-2025-65415MEDIUM
CVE-2025-61314HIGH

Protect Your Business with Hacker-Focused Approach.