CVE-2025-23936 identifies a stored Cross-site Scripting (XSS) vulnerability in the CC Circle Progress Bar plugin, a web component developed by Harun R. Rayhan (thecrazycoder). The vulnerability stems from improper input sanitization during the generation of web pages, allowing attackers to inject malicious scripts that are persistently stored within the application. When other users access the affected pages, the malicious scripts execute in their browsers, potentially leading to session hijacking, credential theft, defacement, or distribution of malware. This vulnerability affects all versions up to and including 1.0.0 of the plugin. Stored XSS is particularly dangerous because the malicious payload is saved on the server and served to multiple users, increasing the attack surface. The vulnerability does not require authentication or user interaction beyond visiting the compromised page, making exploitation straightforward. Although no public exploits have been reported yet, the risk remains significant due to the common use of such plugins in content management systems and websites. The lack of a CVSS score means severity must be assessed based on impact and exploitability factors. The vulnerability highlights the importance of proper input validation and output encoding in web applications to prevent injection attacks.

The stored XSS vulnerability in the CC Circle Progress Bar plugin can have severe consequences for organizations worldwide. Attackers can leverage this flaw to execute arbitrary JavaScript in the context of users’ browsers, leading to theft of sensitive information such as session cookies, login credentials, or personal data. This can result in unauthorized account access, data breaches, and further compromise of internal systems. Additionally, attackers may use the vulnerability to deface websites, distribute malware, or conduct phishing attacks by injecting malicious content into trusted web pages. The persistent nature of stored XSS increases the risk as multiple users can be affected over time. For organizations relying on the affected plugin, this can damage reputation, cause regulatory compliance issues, and incur financial losses. The vulnerability also undermines user trust and can disrupt normal business operations if exploited at scale.

To mitigate CVE-2025-23936, organizations should first check for updates or patches from the plugin developer and apply them promptly once available. In the absence of an official patch, immediate steps include disabling or removing the CC Circle Progress Bar plugin to eliminate the attack vector. Implement strict input validation and output encoding on all user-supplied data to prevent malicious script injection. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. Regularly audit and sanitize stored data to detect and remove any injected malicious content. Additionally, monitor web application logs for suspicious activity indicative of exploitation attempts. Educate developers and administrators on secure coding practices to prevent similar vulnerabilities. Finally, consider deploying web application firewalls (WAFs) with rules tailored to detect and block XSS payloads targeting this plugin.