Overview
CVE-2025-64048 is a medium severity stored Cross-Site Scripting (XSS) vulnerability found in YCCMS version 3.4. This vulnerability resides within the article management functionality, specifically affecting the handling of article titles. An attacker can exploit this flaw to inject malicious JavaScript code into the article title field. When other users view the affected article, the injected script will execute in their browsers, potentially leading to account compromise, data theft, or defacement of the website.
Technical Details
The vulnerability stems from insufficient input sanitization within the add() and getPost() functions of the ArticleAction.class.php file. Specifically, the application fails to properly neutralize user-supplied input when handling the article title. An attacker can inject arbitrary HTML and JavaScript code into the title field. When a user accesses or views the article with the maliciously crafted title, their browser will execute the injected script.
Vulnerable File: ArticleAction.class.php
Vulnerable Functions: add(), getPost()
Vulnerable Input: Article Title
CVSS Analysis
The Common Vulnerability Scoring System (CVSS) score for CVE-2025-64048 is 6.1 (Medium). This score reflects the following characteristics:
- Attack Vector (AV): Network (N) – The vulnerability can be exploited remotely.
- Attack Complexity (AC): Low (L) – The vulnerability is relatively easy to exploit.
- Privileges Required (PR): Low (L) – An attacker with low-level privileges (e.g., a registered user) can exploit the vulnerability.
- User Interaction (UI): Required (R) – A user must interact with the malicious content (e.g., view the affected article) for the exploit to be successful.
- Scope (S): Changed (C) – An exploited vulnerability can affect resources beyond the attacker’s control.
- Confidentiality Impact (C): Low (L) – Limited sensitive information disclosure.
- Integrity Impact (I): Low (L) – Limited modification of data.
- Availability Impact (A): Low (L) – Limited disruption of services.
Possible Impact
Successful exploitation of this XSS vulnerability can lead to several negative consequences:
- Account Compromise: An attacker can steal user session cookies, allowing them to impersonate legitimate users and gain unauthorized access to sensitive data or functionality.
- Data Theft: The injected script can be used to steal sensitive information, such as login credentials, personal data, or financial information.
- Website Defacement: An attacker can modify the appearance of the website, displaying misleading or malicious content to visitors.
- Malware Distribution: The injected script can redirect users to malicious websites or download malware onto their computers.
Mitigation and Patch Steps
To mitigate the risk posed by CVE-2025-64048, the following steps should be taken:
- Upgrade YCCMS: Check yccms.com for a patched version of YCCMS that addresses this vulnerability. Upgrade to the latest version as soon as possible.
- Input Sanitization: Implement robust input sanitization and output encoding techniques to neutralize potentially malicious characters in user-supplied input, particularly in the article title field. Focus on HTML escaping and JavaScript encoding.
- Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) to filter out malicious requests and protect against XSS attacks. Configure the WAF with rules specific to YCCMS.
- Regular Security Audits: Conduct regular security audits and penetration testing to identify and address potential vulnerabilities in your YCCMS installation.
References
YCCMS Official Website
Detailed Vulnerability Report on GitHub Gist
