CVE-2026-57372 in WPJAM Basic Plugin
Summary
by MITRE • 07/13/2026
Server-Side Request Forgery (SSRF) vulnerability in denishua WPJAM Basic wpjam-basic allows Server Side Request Forgery.This issue affects WPJAM Basic: from n/a through <= 7.0.
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Analysis
by VulDB Data Team • 07/13/2026
Server-side request forgery vulnerabilities represent a critical class of security flaws that allow attackers to manipulate server-side applications into making unintended requests to internal or external systems. This particular vulnerability exists within the denishua WPJAM Basic plugin, specifically in versions up to and including 7.0, where the wpjam-basic component fails to properly validate and sanitize user-supplied input parameters that are subsequently used to construct HTTP requests. The flaw stems from insufficient input validation mechanisms that permit malicious actors to craft requests that bypass normal access controls and potentially reach internal network resources that should remain protected from external access.
The technical implementation of this vulnerability occurs when the plugin processes user-provided data without adequate sanitization, allowing an attacker to inject arbitrary URLs or endpoints into request parameters. This weakness enables unauthorized access to internal services, database connections, or other sensitive resources that may be accessible from the server hosting the vulnerable WordPress installation. The vulnerability is classified under CWE-918 as a Server-Side Request Forgery attack, which specifically targets the server's ability to make HTTP requests on behalf of users. From an operational perspective, this flaw can be exploited through various attack vectors including direct parameter manipulation, file inclusion techniques, or by leveraging other vulnerabilities within the WordPress ecosystem that could provide initial access.
The impact of this SSRF vulnerability extends beyond simple data exfiltration as it can potentially allow attackers to perform reconnaissance activities against internal networks, access sensitive configuration files, or even escalate privileges within the compromised system. Attackers may leverage this weakness to discover internal services, bypass firewall restrictions, or target other vulnerable systems within the same network segment that are not directly exposed to the internet. The exploitation process typically involves crafting malicious requests that redirect the server's outbound connections to targets that would normally be inaccessible from the public internet, effectively turning the compromised WordPress server into a proxy for internal network reconnaissance and attack activities.
Security practitioners should implement multiple layers of defense to mitigate this vulnerability including input validation and sanitization techniques, network segmentation, and proper access controls. The recommended mitigation strategies include updating to the latest version of the WPJAM Basic plugin where the vulnerability has been patched, implementing web application firewalls to detect and block suspicious requests, and conducting regular security audits of all installed WordPress plugins and themes. Additionally, organizations should enforce strict network policies that limit outbound connections from web servers and implement proper monitoring of unusual network traffic patterns that may indicate exploitation attempts. This vulnerability aligns with several ATT&CK tactics including reconnaissance and initial access phases, where attackers use SSRF techniques to gather information about internal systems and establish persistent access within the target environment. The vulnerability demonstrates how seemingly minor input validation gaps in popular plugins can create significant security risks for entire WordPress installations and highlights the importance of maintaining up-to-date software components across all web applications.