CVE-2025-28931 in Hashtags Plugin
Summary
by MITRE • 03/12/2025
Cross-Site Request Forgery (CSRF) vulnerability in DevriX Hashtags allows Stored XSS. This issue affects Hashtags: from n/a through 0.3.2.
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Analysis
by VulDB Data Team • 03/12/2025
The CVE-2025-28931 vulnerability represents a critical security flaw in the DevriX Hashtags plugin that demonstrates the dangerous intersection of cross-site request forgery and stored cross-site scripting attacks. This vulnerability exists within the plugin's processing of user input and request handling mechanisms, creating a pathway for malicious actors to execute persistent XSS payloads through CSRF exploitation. The affected version range spans from n/a through 0.3.2, indicating that all versions within this spectrum are potentially compromised and require immediate remediation.
The technical implementation of this vulnerability stems from insufficient validation and sanitization of user-supplied data within the plugin's administrative interfaces. When administrators or users interact with the plugin's functionality, the system fails to properly verify the authenticity of requests through adequate anti-CSRF tokens or similar protective measures. This weakness allows attackers to craft malicious requests that, when executed by authenticated users, can store XSS payloads within the application's database or storage mechanisms. The stored nature of this vulnerability means that the malicious scripts persist and execute whenever affected pages are loaded, making the attack particularly dangerous as it can affect multiple users over time.
From an operational perspective, this vulnerability creates significant risk for WordPress installations using the DevriX Hashtags plugin, as it enables attackers to execute arbitrary JavaScript code within the context of authenticated user sessions. The impact extends beyond simple data theft, potentially allowing for session hijacking, privilege escalation, and full compromise of user accounts. The vulnerability's classification aligns with CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses, while also incorporating elements of CWE-79, which covers Cross-Site Scripting flaws. Attackers leveraging this vulnerability could potentially escalate their privileges, steal sensitive information, or manipulate the plugin's functionality to serve malicious purposes.
The mitigation strategy for this vulnerability requires immediate patching of the DevriX Hashtags plugin to version 0.3.3 or later, which should contain the necessary CSRF token implementation and input validation improvements. Organizations should also implement additional security measures including regular security audits of installed plugins, monitoring for unauthorized administrative activities, and ensuring proper access controls are in place. The ATT&CK framework categorizes this vulnerability under T1548.001 for Abuse of Cloud Infrastructure and T1213.002 for Data from Information Repositories, highlighting the potential for both privilege escalation and data exfiltration through this attack vector. Network segmentation and web application firewalls can provide additional defense-in-depth measures, though the primary remediation must focus on updating the vulnerable plugin to a secure version that properly implements CSRF protection mechanisms.