CVE-2024-37237 in FS Poster Plugin
Summary
by MITRE • 01/02/2025
Cross-Site Request Forgery (CSRF) vulnerability in FS-code FS Poster allows Cross Site Request Forgery.This issue affects FS Poster: from n/a through 6.5.8.
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Analysis
by VulDB Data Team • 02/16/2025
The vulnerability identified as CVE-2024-37237 represents a critical Cross-Site Request Forgery flaw within the FS-code FS Poster plugin, a widely used WordPress plugin for social media posting and scheduling. This CSRF vulnerability exists in versions ranging from the initial release through 6.5.8, creating a significant security risk for WordPress sites that utilize this plugin for social media management. The issue stems from the plugin's failure to implement proper anti-CSRF measures when processing administrative actions, leaving systems exposed to malicious request manipulation attacks that could compromise user accounts and site integrity.
The technical flaw manifests in the plugin's insufficient validation of request origins and lack of anti-CSRF tokens during critical administrative operations. When users navigate to the plugin's administrative interfaces, the system does not properly verify that requests originate from legitimate sources within the same domain. This absence of proper origin validation and token generation creates an exploitable condition where attackers can craft malicious requests that appear to come from authenticated users. The vulnerability specifically impacts the plugin's ability to distinguish between authorized and unauthorized requests, making it susceptible to manipulation through social engineering or by exploiting user sessions. According to CWE-352, this represents a classic cross-site request forgery implementation where the application fails to validate that requests are being made from legitimate sources, and the ATT&CK framework categorizes this under privilege escalation techniques that leverage web application vulnerabilities.
The operational impact of this vulnerability extends beyond simple data exposure, potentially enabling attackers to perform unauthorized administrative actions within the WordPress environment. Successful exploitation could allow malicious actors to modify social media posting schedules, alter plugin configurations, or even gain elevated privileges within the WordPress installation. The vulnerability affects not only the immediate functionality of the FS Poster plugin but also poses broader risks to the entire WordPress site, as it could serve as a foothold for more extensive attacks. Attackers could leverage this vulnerability to manipulate social media content, potentially spreading malicious information or conducting phishing campaigns through compromised social media accounts, while simultaneously undermining the trust and integrity of the organization's digital presence.
Organizations utilizing FS Poster plugin versions 6.5.8 and earlier should immediately implement mitigation strategies to protect their WordPress installations from potential exploitation. The primary recommended approach involves upgrading to the latest available version of the plugin where the CSRF vulnerability has been addressed. Additionally, administrators should consider implementing additional security layers such as web application firewalls that can detect and block suspicious request patterns, and ensure that proper access controls are in place to limit administrative privileges. The implementation of proper anti-CSRF token mechanisms within the plugin's administrative interfaces should be enforced, and regular security audits of WordPress plugins should be conducted to identify similar vulnerabilities. Organizations should also establish monitoring protocols to detect unauthorized changes to social media posting configurations and maintain up-to-date backups to facilitate rapid recovery in case of successful exploitation attempts.