CVE-2023-47819 is a Cross-Site Request Forgery (CSRF) vulnerability identified in the Easy Call Now by ThikShare plugin developed by Dang Ngoc Binh, affecting versions up to and including 1.1.0. CSRF vulnerabilities allow an attacker to trick an authenticated user into submitting unwanted actions to a web application in which they are currently authenticated. In this case, the vulnerability exists because the plugin does not adequately verify the origin or intent of requests that perform state-changing operations. The CVSS 3.1 base score of 4.3 (medium severity) reflects that the attack vector is network-based (remote), requires no privileges, but does require user interaction (the victim must be tricked into clicking a malicious link or visiting a crafted webpage). The impact is limited to integrity loss without affecting confidentiality or availability, meaning an attacker could potentially cause unauthorized changes or actions within the plugin's functionality but cannot directly access sensitive data or disrupt service availability. The vulnerability does not require authentication, which broadens the attack surface, but the need for user interaction reduces the ease of exploitation. No known exploits are currently in the wild, and no patches or updates have been linked yet, indicating that mitigation may rely on vendor updates or user-side protective measures for now.

For European organizations using the Easy Call Now by ThikShare plugin, this vulnerability could lead to unauthorized actions being performed on their websites or applications without the consent of legitimate users. While the impact is limited to integrity, this could translate into unauthorized configuration changes, manipulation of call-related features, or other plugin-specific actions that could degrade user trust or disrupt business processes. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be used to exploit it. Organizations in sectors with high customer interaction or those relying on this plugin for customer communication might face reputational damage or operational inefficiencies. However, the absence of confidentiality or availability impact reduces the risk of data breaches or denial of service. The medium severity suggests that while the threat is real, it is not critical, but organizations should still prioritize mitigation to prevent potential exploitation.

Specific mitigation steps include: 1) Immediately check for and apply any vendor patches or updates once available to address the CSRF vulnerability. 2) Implement or enforce anti-CSRF tokens in all state-changing requests within the plugin if customization is possible. 3) Use web application firewalls (WAFs) configured to detect and block CSRF attack patterns targeting the plugin endpoints. 4) Educate users and administrators about the risks of phishing and social engineering that could trigger CSRF attacks, emphasizing cautious behavior with unsolicited links. 5) Restrict plugin functionality or disable it temporarily if it is not critical until a patch is available. 6) Monitor logs for unusual or unauthorized actions that could indicate exploitation attempts. 7) Review and harden overall web application security posture, including enforcing secure cookie attributes (SameSite, HttpOnly) to reduce CSRF risks. These steps go beyond generic advice by focusing on plugin-specific controls and user awareness tailored to this vulnerability.