CVE-2024-51631 identifies a Cross-Site Request Forgery (CSRF) vulnerability in the Sticky Social Bar WordPress plugin developed by Md Eftakhairul Islam, affecting versions up to 2.0. CSRF vulnerabilities allow attackers to induce authenticated users to perform unwanted actions on a web application by exploiting the trust that the application places in the user's browser. In this case, the Sticky Social Bar plugin lacks adequate CSRF protections, such as anti-CSRF tokens or proper request validation, enabling attackers to craft malicious requests that execute state-changing operations without the user's consent. The vulnerability does not require prior authentication bypass but does require the victim to be logged into the affected site. There are no known exploits in the wild, and no official patch or CVSS score has been published yet. The plugin is widely used in WordPress environments to provide social media sharing functionality, making it a common target for attackers seeking to leverage CSRF to manipulate site behavior or user settings. The absence of a CVSS score suggests that the vulnerability has not yet been fully assessed, but the nature of CSRF vulnerabilities typically impacts integrity and availability by allowing unauthorized actions. The vulnerability was publicly disclosed in November 2024, with the initial reservation in late October 2024. The lack of patch links indicates that users should monitor vendor communications closely for updates. The plugin’s market penetration in WordPress ecosystems worldwide means that many websites could be at risk if they do not implement compensating controls or update promptly.

The primary impact of CVE-2024-51631 is on the integrity and availability of affected web applications using the Sticky Social Bar plugin. Attackers can exploit this CSRF vulnerability to perform unauthorized actions on behalf of authenticated users, potentially changing plugin settings, altering website content, or triggering other state-changing operations. This can lead to unauthorized modifications, defacement, or disruption of website functionality. While confidentiality impact is limited since the vulnerability does not directly expose sensitive data, the unauthorized actions could indirectly lead to information disclosure or privilege escalation if combined with other vulnerabilities. Organizations relying on this plugin for social media integration may face reputational damage, user trust erosion, and operational disruptions. The ease of exploitation is moderate, requiring the victim to be authenticated and to visit a maliciously crafted webpage, but no complex technical skills are necessary. The scope is broad given the widespread use of WordPress and this plugin, affecting websites globally across various sectors including e-commerce, media, education, and government. Without timely mitigation, attackers could leverage this vulnerability to conduct targeted attacks or mass exploitation campaigns.

To mitigate CVE-2024-51631 effectively, organizations should: 1) Monitor the vendor’s official channels for patches or updates addressing this vulnerability and apply them promptly once available. 2) Implement web application firewall (WAF) rules to detect and block suspicious CSRF attempts targeting the Sticky Social Bar plugin endpoints. 3) Enforce strict anti-CSRF protections by ensuring that all state-changing requests require valid, unique CSRF tokens and that these tokens are verified server-side. 4) Restrict HTTP methods for sensitive operations to POST only and validate the origin and referer headers to confirm legitimate requests. 5) Educate users and administrators about the risks of CSRF and encourage cautious behavior when clicking on links, especially when authenticated. 6) Conduct regular security audits and penetration testing focused on CSRF and related web vulnerabilities within the WordPress environment. 7) Consider temporarily disabling or replacing the Sticky Social Bar plugin with alternatives that have robust security controls if immediate patching is not feasible. 8) Employ Content Security Policy (CSP) headers to reduce the risk of malicious script execution that could facilitate CSRF attacks.