CVE-2025-32154 is a Local File Inclusion (LFI) vulnerability found in the Catch Themes Catch Dark Mode WordPress plugin, specifically affecting versions up to and including 2.0.1. The vulnerability arises from improper control over the filename parameter used in PHP include or require statements, allowing an attacker to manipulate the input to include arbitrary files from the server's filesystem. This can lead to exposure of sensitive files such as configuration files, password files, or other critical data, and in some cases, may allow remote code execution if the attacker can include files containing executable PHP code. The vulnerability is classified as an improper control of filename for include/require statements, a common PHP security issue that occurs when user input is not properly validated or sanitized before being used in file inclusion functions. Although no public exploits have been reported yet, the vulnerability is publicly disclosed and documented in the CVE database. The affected product, Catch Dark Mode, is a WordPress plugin that enables dark mode features on websites, and it is used by a subset of WordPress sites. The lack of a CVSS score means severity must be assessed based on potential impact and exploitability. The vulnerability does not require authentication or user interaction, increasing its risk profile. The plugin's widespread use in WordPress ecosystems makes this vulnerability relevant to many organizations relying on WordPress for their web presence.

The potential impact of CVE-2025-32154 is significant for organizations using the vulnerable Catch Dark Mode plugin. Successful exploitation can lead to unauthorized disclosure of sensitive server files, including configuration files containing database credentials or other secrets, compromising confidentiality. In some scenarios, attackers may execute arbitrary PHP code by including malicious files, leading to full system compromise, affecting integrity and availability. This can result in website defacement, data theft, or use of the compromised server as a pivot point for further attacks. The vulnerability can also facilitate lateral movement within an organization's network if exploited on internal-facing web applications. Given that WordPress powers a substantial portion of the internet, and plugins are a common attack vector, the scope of affected systems is broad. Organizations with public-facing WordPress sites using this plugin are at risk, especially if they have not applied updates or mitigations. The absence of known exploits in the wild currently limits immediate risk but does not diminish the urgency to address the vulnerability due to its straightforward exploitation path.

To mitigate CVE-2025-32154, organizations should immediately update the Catch Dark Mode plugin to a version that addresses this vulnerability once available. In the absence of an official patch, administrators should consider disabling or removing the plugin to eliminate the attack surface. Implement strict input validation and sanitization on any parameters controlling file inclusion to ensure only allowed filenames or paths are processed. Employ web application firewalls (WAFs) with rules designed to detect and block attempts to exploit file inclusion vulnerabilities. Restrict file system permissions for the web server user to limit access to sensitive files and directories, minimizing the impact of potential exploitation. Monitor web server logs for suspicious requests attempting to manipulate include parameters. Additionally, consider deploying runtime application self-protection (RASP) solutions that can detect and prevent malicious file inclusion attempts in real time. Regular security audits and vulnerability scanning of WordPress plugins should be part of ongoing security hygiene to detect similar issues proactively.