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CVE-2025-48301: SQL Injection Vulnerability in YayCommerce SMTP for SendGrid – YaySMTP

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Overview

The cybersecurity vulnerability identified as CVE-2025-48301 has been discovered in the YayCommerce SMTP for SendGrid – YaySMTP software. This vulnerability allows for the exploitation of SQL Injection, leading to potential system compromise or data leakage. This issue is of significant concern for all users of SMTP for SendGrid – YaySMTP: from n/a through version 1.5.

Vulnerability Summary

CVE ID: CVE-2025-48301
Severity: High (CVSS: 7.6)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

SMTP for SendGrid – YaySMTP | n/a through 1.5

How the Exploit Works

An attacker can exploit this vulnerability by sending specially crafted SQL commands to the affected application. Due to the improper neutralization of special elements used in an SQL command by the software, an attacker can manipulate SQL queries, leading to unauthorized access, data manipulation, or data leakage.

Conceptual Example Code

Here is a conceptual example of how this vulnerability might be exploited. This example uses an HTTP request with a malicious SQL command in a data field:

POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
username=admin' OR '1'='1'; --&password=pass

In the above example, the attacker is injecting a SQL command (‘OR ‘1’=’1′; –) into the “username” field in an attempt to bypass authentication.

Mitigation

To mitigate this vulnerability, users are advised to apply the latest patches provided by the vendor. If a patch is not yet available or cannot be applied immediately, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation method, potentially preventing the exploitation of this vulnerability.

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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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