CVE-2026-39718 in Wallstreet Plugin
Summary
by MITRE • 10/02/2026
Cross-Site Request Forgery (CSRF) vulnerability in Webriti Wallstreet wallstreet allows Cross Site Request Forgery.This issue affects Wallstreet: from n/a through 2.8.6.
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Analysis
by VulDB Data Team • 10/02/2026
The identified security flaw represents a classic Cross-Site Request Forgery, commonly abbreviated as CSRF or XSRF, within the Wallstreet plugin for WordPress developed by Webriti. This vulnerability exists in versions ranging from no specific lower bound up through version 2.8.6. The core issue stems from an insufficient implementation of anti-CSRF protections on state-changing HTTP requests initiated by the application. In a typical web architecture, browsers automatically attach session cookies to every request made to a domain where the user is authenticated. If the server relies solely on these cookies for authentication and lacks additional verification mechanisms such as synchronizer tokens or custom headers, an attacker can exploit this trust relationship.
From a technical perspective, the vulnerability allows a malicious actor to craft a forged HTTP request that mimics legitimate administrative actions performed by an authorized user. When a victim who is currently logged into the WordPress administration panel visits a webpage controlled by the attacker, the browser will automatically send any relevant cookies associated with the target domain along with the maliciously crafted request. Because the server validates the session cookie and assumes the action was initiated by the legitimate user due to its presence, it processes the command without requiring explicit confirmation from the user interface. This bypasses standard security controls that rely on client-side state management rather than server-side intent verification.
The operational impact of this vulnerability is significant for any WordPress site running an affected version of Wallstreet. An attacker could potentially perform a variety of unauthorized actions depending on the specific endpoints exposed by the plugin and the privileges of the targeted user account. If the victim holds administrative rights, which is common in many deployments, the consequences can be severe. These may include modifying website settings, creating new administrator accounts to maintain persistent access, deleting content or plugins, or altering site configurations that could lead to further compromise such as defacement or data exfiltration. Even for lower-privileged users, actions like changing email addresses associated with admin accounts or updating plugin-specific preferences can disrupt service availability and integrity.
This vulnerability aligns directly with CWE-352, which defines Cross-Site Request Forgery as a flaw where an application uses user-supplied input to construct HTTP requests without validating the intent of those requests through anti-CSRF tokens or similar mechanisms. Furthermore, in terms of adversary tactics, this exploitation technique maps to MITRE ATT&CK Technique T1098, specifically sub-techniques related to Account Manipulation if new accounts are created, or T1484 for Domain Policy Modification if site settings are altered. The lack of verification that the request originated from a legitimate source within the application context is the primary deficiency identified in this assessment.
To mitigate this vulnerability, immediate action is required by upgrading the Wallstreet plugin to version 2.8.7 or later where these issues have been addressed. For organizations unable to upgrade immediately due to compatibility constraints with other systems, temporary mitigations should be implemented at the web server or application firewall level. These measures include enforcing strict Content Security Policy headers that restrict form submissions and ensuring that sensitive endpoints require additional authentication factors beyond simple session cookies. Additionally, reviewing user roles within WordPress ensures that only necessary personnel have administrative privileges, thereby reducing the blast radius of a successful CSRF attack. Regular security audits and penetration testing should be conducted to verify that anti-CSRF controls are functioning correctly across all state-changing operations in the application stack.