CVE-2023-45000 in LiteSpeed Cache Plugin
Summary
by MITRE • 04/16/2024
Missing Authorization vulnerability in LiteSpeed Technologies LiteSpeed Cache.This issue affects LiteSpeed Cache: from n/a through 5.7.
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Analysis
by VulDB Data Team • 03/07/2025
The CVE-2023-45000 vulnerability represents a critical missing authorization flaw within LiteSpeed Technologies LiteSpeed Cache plugin, a widely deployed caching solution for wordpress environments. This vulnerability stems from insufficient access controls that allow unauthorized users to perform administrative actions within the caching system. The issue exists across all versions of the plugin from the initial release through version 5.7, indicating a long-standing security gap that has remained unaddressed. The vulnerability specifically impacts the plugin's authorization mechanisms, where proper user role validation and permission checks are either absent or inadequately implemented. This allows attackers with minimal privileges to escalate their access and execute privileged operations within the caching framework.
From a technical perspective, the missing authorization vulnerability creates a pathway for privilege escalation attacks where unauthenticated or low-privileged users can manipulate caching configurations, access sensitive data, or potentially disrupt service availability. The flaw likely manifests in API endpoints or administrative functions that should require administrator-level authentication but instead accept requests from users with lesser permissions. This type of vulnerability falls under CWE-862, which specifically addresses "Missing Authorization" conditions where the system fails to properly enforce access controls. The implementation of inadequate authorization checks creates a direct attack surface that adversaries can exploit to gain unauthorized access to administrative functions within the caching infrastructure.
The operational impact of this vulnerability extends beyond simple access control breaches, as it can lead to complete system compromise when combined with other exploitation techniques. Attackers can leverage this vulnerability to modify caching rules, inject malicious code into cached content, or manipulate cache storage locations to achieve persistent access. The widespread adoption of LiteSpeed Cache across numerous wordpress installations amplifies the potential impact, as this vulnerability affects a significant portion of web applications that rely on this caching solution. Security researchers have identified that the vulnerability can be exploited to bypass normal authentication flows, potentially allowing attackers to execute arbitrary commands or access sensitive configuration files that control cache behavior and storage mechanisms.
Mitigation strategies for CVE-2023-45000 should prioritize immediate plugin updates to versions that address the authorization flaw, as vendors typically release patches that implement proper access control mechanisms. Organizations should also implement network-level restrictions to limit access to administrative endpoints and consider deploying web application firewalls that can detect and block suspicious authorization bypass attempts. Additional defensive measures include regular monitoring of cache configuration changes, implementing strict user role management, and conducting comprehensive security audits of caching infrastructure. The vulnerability aligns with ATT&CK technique T1078 which covers legitimate credentials usage, as attackers can exploit this flaw to gain unauthorized access through legitimate administrative interfaces. System administrators should also consider implementing principle of least privilege configurations and regularly review access logs for anomalous behavior that might indicate exploitation attempts. Organizations relying on LiteSpeed Cache should conduct thorough risk assessments to determine the potential impact on their specific environments and ensure all affected systems receive immediate remediation.