CVE-2025-47437 in Cache Plugin
Summary
by MITRE • 09/09/2025
Server-Side Request Forgery (SSRF) vulnerability in LiteSpeed Technologies LiteSpeed Cache. This issue affects LiteSpeed Cache: from n/a through 7.0.1.
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Analysis
by VulDB Data Team • 09/10/2025
The CVE-2025-47437 vulnerability represents a critical server-side request forgery flaw within LiteSpeed Technologies LiteSpeed Cache plugin, which has been identified as affecting versions ranging from an unspecified minimum to version 7.0.1. This vulnerability resides within the server-side processing mechanisms of the caching solution, creating a potential pathway for malicious actors to manipulate backend server requests through crafted input parameters. The issue stems from inadequate validation of user-supplied data that is processed by the LiteSpeed Cache component, allowing unauthorized access to internal network resources that should remain protected from external exposure.
The technical exploitation of this SSRF vulnerability occurs when the LiteSpeed Cache plugin fails to properly sanitize or validate input parameters that are subsequently used to construct HTTP requests to external resources or internal services. Attackers can craft malicious requests that bypass normal access controls and potentially gain access to sensitive internal systems, databases, or services that reside within the same network infrastructure as the vulnerable server. This flaw operates at the application layer and can be particularly dangerous because it allows attackers to probe internal network configurations, access restricted resources, or even escalate their privileges within the affected environment. The vulnerability directly maps to CWE-918, which specifically addresses server-side request forgery conditions where applications fail to properly validate or restrict requests to internal resources.
From an operational impact perspective, this vulnerability creates significant security risks for organizations using LiteSpeed Cache, particularly those operating in environments where internal network segmentation is critical for security posture. The exploitation of this flaw could enable attackers to perform reconnaissance activities against internal systems, access sensitive data stored in databases or internal services, or potentially establish persistent access points within the network infrastructure. Organizations utilizing WordPress or other content management systems that rely on LiteSpeed Cache for performance optimization face increased risk of data breaches, system compromise, or unauthorized access to backend services. The vulnerability's impact extends beyond immediate data exposure to potentially enable lateral movement within network environments, especially in cases where internal systems lack proper access controls or authentication mechanisms.
Security mitigations for CVE-2025-47437 should prioritize immediate patching of affected LiteSpeed Cache versions to the latest available release that addresses the SSRF vulnerability. Organizations should implement network-level restrictions to prevent outbound requests to internal services from web applications, deploy web application firewalls that can detect and block suspicious request patterns, and conduct thorough network segmentation to limit the potential impact of successful exploitation attempts. Additionally, administrators should review and restrict the capabilities of the LiteSpeed Cache plugin to ensure it only accesses necessary external resources while maintaining proper input validation and sanitization. The implementation of proper access controls and monitoring mechanisms can help detect anomalous behavior patterns that may indicate attempted exploitation of this vulnerability. This vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol tunneling and T1566 for phishing, as attackers may use this flaw to gain access to internal systems that can then be used to launch further attacks or establish persistence within the target environment.