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CVE-2025-49237: CSRF Vulnerability in POEditor Allowing Path Traversal

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Overview

The report examines a critical security vulnerability, CVE-2025-49237, which is a Cross-Site Request Forgery (CSRF) issue in POEditor. This vulnerability affects versions from n/a through 0.9.10 of POEditor and could lead to potential system compromise or data leakage. As such, it is of high importance to developers, security analysts, and system administrators who are responsible for maintaining the security of their systems.

Vulnerability Summary

CVE ID: CVE-2025-49237
Severity: High (CVSS 7.4)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Successful exploitation could lead to potential system compromise or data leakage.

Affected Products

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Product | Affected Versions

POEditor | Up to 0.9.10

How the Exploit Works

The vulnerability lies in the improper handling of CSRF tokens by POEditor, allowing an attacker to trick a victim into performing an action without their knowledge or consent. Moreover, it allows for Path Traversal, letting an attacker access, read, or modify files on the server that they should not have access to.

Conceptual Example Code

Here is a brief conceptual example of how the vulnerability might be exploited via an HTTP request:

POST /poeditor/path HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"path": "../../../../../../../etc/passwd"
}

In the above conceptual example, the attacker is attempting to traverse the file system to access the ‘/etc/passwd’ file, which could potentially contain sensitive information.

Mitigation

To mitigate this vulnerability, it is recommended to apply the patch provided by the vendor. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy.

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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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