CVE-2025-22326 in 5centsCDN Plugin
Summary
by MITRE • 01/07/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in 5centsCDN 5centsCDN allows Reflected XSS.This issue affects 5centsCDN: from n/a through 24.8.16.
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Analysis
by VulDB Data Team • 02/15/2025
This cross-site scripting vulnerability in 5centsCDN represents a critical security flaw that enables attackers to inject malicious scripts into web pages viewed by users. The vulnerability occurs during the web page generation process where input parameters are not properly sanitized or escaped before being rendered in the browser. This allows an attacker to craft malicious payloads that can be executed in the context of a victim's browser session, potentially leading to session hijacking, data theft, or unauthorized actions performed on behalf of the user.
The reflected XSS vulnerability specifically means that the malicious script is reflected off the web server rather than being stored on the server. Attackers can exploit this by crafting URLs with malicious script payloads that, when clicked by victims, are reflected back by the server and executed in the victim's browser. This type of vulnerability is particularly dangerous because it can be delivered through email phishing campaigns, malicious links in chat applications, or compromised websites that redirect users to malicious URLs containing the exploit code. The vulnerability affects all versions of 5centsCDN from the initial release through version 24.8.16, indicating this flaw has persisted across multiple releases without proper remediation.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable sophisticated attack vectors that leverage the browser's trust relationship with the compromised website. Attackers can use this vulnerability to steal session cookies, modify page content, redirect users to malicious sites, or perform actions that appear to originate from the legitimate website. This creates a significant risk for users who may unknowingly interact with compromised content, potentially leading to data breaches, credential theft, or unauthorized access to sensitive information. The reflected nature of the vulnerability means that attackers do not need to maintain persistent access to the server, as each victim must be individually targeted with a crafted request.
Security professionals should implement multiple layers of protection to address this vulnerability, beginning with immediate code review and input sanitization practices. The fix requires ensuring that all user-supplied input is properly escaped or sanitized before being incorporated into web page content, particularly in areas where dynamic content is generated based on request parameters. This remediation approach aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities and recommends input validation, output encoding, and proper context-aware escaping. Organizations should also consider implementing content security policies to limit the execution of unauthorized scripts, deploy web application firewalls to detect and block malicious requests, and establish regular security testing procedures to identify similar vulnerabilities in other applications. The ATT&CK framework categorizes this type of vulnerability under T1203 - Exploitation for Client Execution, highlighting the importance of defending against client-side exploitation techniques that leverage browser trust relationships.