CVE-2025-47494 is a high-severity vulnerability classified under CWE-98, which pertains to improper control of filenames used in include or require statements within PHP programs. Specifically, this vulnerability affects the EventON plugin developed by Ashan Perera, up to version 2.4.1. The flaw allows for PHP Local File Inclusion (LFI), which means an attacker can manipulate the filename parameter used in PHP's include or require functions to load unintended files from the local server. This can lead to arbitrary code execution, disclosure of sensitive files, or server compromise. The vulnerability is exploitable remotely over the network (AV:N), but requires high attack complexity (AC:H) and low privileges (PR:L), with no user interaction needed (UI:N). The scope is unchanged (S:U), but the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H). Although no public exploits have been reported yet, the vulnerability's nature and severity make it a critical concern for any organization using the affected EventON versions. The absence of a patch link suggests that a fix may not yet be publicly available, increasing the urgency for mitigation.

For European organizations, this vulnerability poses a significant risk, especially for those using WordPress sites with the EventON plugin for event management. Successful exploitation could lead to unauthorized access to sensitive data, defacement of websites, or use of compromised servers as pivot points for further attacks within corporate networks. Given the high impact on confidentiality, integrity, and availability, organizations could face data breaches, service disruptions, and reputational damage. The attack complexity being high may limit widespread exploitation initially, but the low privilege requirement means that even users with limited access could trigger the vulnerability. This is particularly concerning for organizations with multiple contributors or editors on their websites. Additionally, the lack of user interaction requirement facilitates automated exploitation attempts. The vulnerability could also be leveraged in supply chain attacks if attackers compromise event-related websites that are trusted by other entities.

Organizations should immediately audit their WordPress installations to identify the presence of the EventON plugin and verify its version. Until a patch is released, it is advisable to disable or remove the EventON plugin to eliminate the attack surface. Web application firewalls (WAFs) should be configured to detect and block suspicious requests attempting to manipulate include or require parameters. Implement strict input validation and sanitization on all user-supplied inputs related to file inclusion. Restrict file system permissions to prevent the web server from accessing sensitive files outside the intended directories. Monitor web server logs for unusual access patterns indicative of LFI attempts. Additionally, organizations should maintain an incident response plan to quickly address any exploitation attempts. Once a vendor patch is available, prioritize its deployment after testing in a controlled environment. Consider employing runtime application self-protection (RASP) tools to detect and block exploitation attempts in real time.