The ilGhera Support System for WooCommerce plugin for WordPress suffers from a missing authorization vulnerability classified as CWE-862. Specifically, the functions 'delete_single_ticket_callback' and 'change_ticket_status_callback' lack proper capability checks, allowing any authenticated user with at least Subscriber-level privileges to delete or alter the status of support tickets. Since WordPress Subscriber roles typically have minimal permissions, this vulnerability effectively escalates their ability to manipulate critical support data without administrative consent. The vulnerability affects all plugin versions up to and including 1.2.6. Exploitation is possible remotely without user interaction, as attackers only need to be authenticated users on the WordPress site. The impact is limited to integrity, as attackers can delete or modify tickets, potentially disrupting customer support workflows and causing data loss. No known public exploits have been reported yet, but the ease of exploitation and the low privilege required make it a significant risk. The CVSS 3.1 score of 5.3 reflects a medium severity, with network attack vector, low attack complexity, no privileges required beyond authentication, and no user interaction needed. No patches or updates are currently linked, so mitigation may require manual intervention or plugin updates once available.

For European organizations using WooCommerce with the ilGhera Support System plugin, this vulnerability can lead to unauthorized deletion or modification of customer support tickets. This compromises the integrity of support data, potentially resulting in loss of critical customer information, disruption of support processes, and damage to customer trust. Organizations relying on accurate ticket histories for compliance, dispute resolution, or service quality monitoring may face operational and reputational risks. Although confidentiality and availability are not directly impacted, the integrity loss can indirectly affect service reliability and customer satisfaction. Attackers with minimal privileges can exploit this flaw, increasing the risk of insider threats or compromised low-privilege accounts being leveraged. The vulnerability could be exploited to cover tracks of malicious activity or sabotage support operations, which is particularly concerning for sectors with stringent customer service and regulatory requirements such as finance, healthcare, and e-commerce prevalent in Europe.

European organizations should immediately audit their WordPress installations to identify the presence of the ilGhera Support System for WooCommerce plugin and its version. Until an official patch is released, administrators should restrict Subscriber-level user registrations or disable the plugin if feasible. Implementing strict user role management and monitoring for unusual ticket deletions or status changes is critical. Employ Web Application Firewalls (WAFs) with custom rules to detect and block unauthorized requests targeting the vulnerable functions. Consider applying temporary code-level fixes by adding capability checks to the affected functions if development resources are available. Regular backups of support ticket data should be maintained to enable recovery from unauthorized deletions. Organizations should also monitor security advisories from the plugin vendor and WordPress community for patches or updates addressing this vulnerability. Additionally, enforcing multi-factor authentication (MFA) for all user accounts can reduce the risk of compromised credentials being exploited.