CVE-2026-2932 in YiFang
Summary
by MITRE • 02/22/2026
A security flaw has been discovered in YiFang CMS up to 2.0.5. The impacted element is the function update of the file app/db/admin/D_adPosition.php of the component Extended Management Module. Performing a manipulation of the argument name/index results in cross site scripting. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.
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Analysis
by VulDB Data Team • 02/23/2026
The vulnerability identified as CVE-2026-2932 represents a critical cross site scripting flaw within the YiFang CMS version 2.0.5 and earlier. This security weakness resides within the Extended Management Module's administrative component, specifically in the D_adPosition.php file where the update function processes user input. The flaw manifests when an attacker manipulates the name/index arguments, allowing malicious code execution within the context of a victim's browser session. This vulnerability directly impacts the integrity and confidentiality of the content management system's administrative interface.
The technical implementation of this XSS vulnerability occurs through improper input validation and output encoding within the update function of the administrative module. When the system processes the manipulated name/index parameters, it fails to sanitize or escape the input before rendering it in the web interface. This creates an opportunity for attackers to inject malicious scripts that execute in the browser context of authenticated administrators or users with administrative privileges. The vulnerability's classification aligns with CWE-79, which specifically addresses cross site scripting flaws in web applications. The attack vector is remote and accessible without authentication, making it particularly dangerous as it can be exploited by attackers from anywhere on the internet.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform a wide range of malicious activities within the compromised system. An attacker could leverage this XSS flaw to steal administrative session cookies, modify content management configurations, inject malicious advertisements, or even escalate privileges within the CMS environment. The public availability of exploit code significantly increases the risk level, as it reduces the technical barrier for potential attackers to exploit this vulnerability. This vulnerability directly maps to several ATT&CK techniques including T1566 for initial access through web application attacks and T1071 for application layer protocol usage.
Mitigation strategies for this vulnerability require immediate action to address the root cause through proper input validation and output encoding practices. Organizations should implement comprehensive input sanitization measures that filter and escape all user-supplied data before processing within the CMS. The recommended approach includes deploying proper content security policies to prevent script execution and implementing strict validation of all parameters passed to the update function. Additionally, administrators should consider implementing web application firewalls to detect and block malicious payloads targeting this specific vulnerability. Regular security updates and patch management procedures should be enforced to prevent similar issues in future releases, while network segmentation can help limit the potential impact of successful exploitation attempts. The vulnerability highlights the critical importance of secure coding practices and input validation in web applications, particularly within administrative interfaces where elevated privileges can lead to complete system compromise.