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CVE-2025-50983: SQL Injection Vulnerability in readarr 0.4.15.2787

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Overview

The CVE-2025-50983 is a significant vulnerability that was discovered in the readarr software version 0.4.15.2787. This vulnerability primarily affects those who use readarr for managing their books and could lead to potential system compromise or data leakage. In the ever-growing field of cybersecurity, such vulnerabilities can pose severe threats to the integrity, confidentiality, and availability of data if not resolved promptly. The severity of this vulnerability highlights the importance of regular system updates and thorough security practices.

Vulnerability Summary

CVE ID: CVE-2025-50983
Severity: High (8.3)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

readarr | 0.4.15.2787

How the Exploit Works

The exploit takes advantage of a SQL Injection vulnerability in the sortKey parameter of the GET /api/v1/wanted/cutoff API endpoint in readarr 0.4.15.2787. The endpoint fails to sanitize user-supplied input correctly, allowing attackers to inject and execute arbitrary SQL commands against the backend SQLite database. Attackers can use tools such as Sqlmap for exploitation via stacked queries, demonstrating that the parameter can be misused to run arbitrary SQL statements. A heavy query can be executed using SQLite’s RANDOMBLOB() and HEX() functions to simulate a time-based payload, indicating deep control over database interactions.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. This is a sample HTTP GET request:

GET /api/v1/wanted/cutoff?sortKey=1%3BDELETE+FROM+users HTTP/1.1
Host: target.example.com

This request attempts to exploit the vulnerability by inserting a SQL command (`1;DELETE FROM users`) in the sortKey parameter. If successful, this could lead to deletion of all users from the ‘users’ table in the database.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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