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CVE-2025-24853: Vulnerability in Apache JSPWiki Allows for Potential Javascript Execution and Sensitive Data Leakage

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Overview

CVE-2025-24853 is a significant vulnerability found in Apache JSPWiki that can allow attackers to execute javascript in the victim’s browser, potentially resulting in sensitive data leakage. This vulnerability affects users of Apache JSPWiki and poses a serious threat to data security and system integrity.

Vulnerability Summary

CVE ID: CVE-2025-24853
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise and sensitive data leakage

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Product | Affected Versions

Apache JSPWiki | Prior to 2.12.3

How the Exploit Works

With the CVE-2025-24853 vulnerability, attackers can create a request using a carefully crafted header link with wiki markup syntax. This request can then be utilized to execute javascript in the victim’s browser. This exploit could potentially allow attackers to retrieve sensitive data from the victim’s system.

Conceptual Example Code

The following example demonstrates a conceptual exploit of this vulnerability:

POST /jspwiki/wikimarkup HTTP/1.1
Host: target.example.com
Content-Type: text/plain
[[_header text_|javascript:alert(document.cookie)]]

In this example, an attacker might craft a POST request that includes a malicious header link in the wiki markup syntax. The link contains a javascript code that, when executed, would display the victim’s cookies, potentially revealing sensitive information.

Mitigation Guidance

Users are advised to upgrade to Apache JSPWiki 2.12.3 or later versions to mitigate the risk of this vulnerability. As a temporary measure, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to detect and block attempts to exploit 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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