CVE-2026-78083 in SP Property Extension
Summary
by MITRE • 09/10/2026
Joomla Extension - joomshaper.com - Missing CSRF Token Verification in Property Booking and Agent Contact Endpoints in SP Property < 4.1.4 - The visitor booking (properties.booking) and agent contact form submission (agents.sendmail) endpoints processed POST requests without verifying Joomla session anti-CSRF tokens.
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Analysis
by VulDB Data Team • 09/10/2026
The vulnerability identified in SP Property versions prior to 4.1.4 represents a critical failure in implementing Cross-Site Request Forgery protections for specific administrative and user-facing endpoints within the Joomla extension ecosystem. The core technical flaw lies in the absence of CSRF token verification during the processing of POST requests directed at the properties.booking endpoint, which handles visitor booking submissions, and the agents.sendmail endpoint, responsible for agent contact form data transmission. In a secure implementation, these state-changing operations must validate that the request originates from an authenticated user session by checking against a unique, unpredictable anti-CSRF token generated during page load. The lack of this verification mechanism allows attackers to craft malicious requests that mimic legitimate actions without requiring any prior authentication or interaction from the victim beyond clicking a link or loading a page containing the exploit payload.
This architectural weakness directly maps to CWE-352, which defines Cross-Site Request Forgery as an attack where a malicious website causes a user's browser to perform unwanted actions on a trusted site for which the user is currently authenticated. By omitting token validation, SP Property fails to distinguish between requests initiated by legitimate users and those forged by external attackers. The operational impact of this vulnerability is significant because it enables unauthorized actors to manipulate booking data or send unsolicited messages through agent contact forms without permission. This can lead to data integrity issues such as false bookings being recorded in the system's database, cluttering administrative interfaces with spam-like entries that require manual cleanup and potentially disrupting legitimate business operations for property agents using the platform.
Furthermore, the ability to submit arbitrary content via these endpoints introduces secondary risks related to injection attacks if input sanitization is not rigorously enforced elsewhere in the application logic. While CSRF primarily targets state changes rather than direct data exfiltration, the combination of unverified POST requests and potential insufficient output encoding could facilitate Stored Cross-Site Scripting or other code execution vectors depending on how the submitted booking details or contact messages are rendered later by administrators or displayed to other users. This aligns with ATT&CK technique T1566.002, Spearphishing Link, where attackers might distribute links containing forged requests to trick victims into triggering these actions, thereby compromising the integrity of the Joomla site's data and potentially damaging the reputation of property agents who rely on accurate communication channels.
Mitigation strategies must prioritize immediate patching to version 4.1.4 or later, which addresses this oversight by implementing robust CSRF token validation for all state-changing HTTP methods. For organizations unable to upgrade immediately due to compatibility constraints with other extensions, a temporary workaround involves manually injecting custom middleware or plugin code into the Joomla installation that intercepts POST requests to these specific endpoints and validates them against standard session tokens before processing. Additionally, developers should ensure consistent application of security headers such as SameSite cookie attributes to provide an additional layer of defense against cross-origin request forgery attempts. Regular audits of form handling logic across all extensions are recommended to prevent similar oversights in other parts of the web application architecture.