CVE-2025-62091 identifies a missing authorization vulnerability (CWE-862) in the Vollstart Serial Codes Generator and Validator plugin designed for WooCommerce platforms. This plugin facilitates the generation and validation of serial codes, commonly used for licensing or product activation in e-commerce environments. The vulnerability arises due to improperly configured access control mechanisms, allowing users with limited privileges (PR:L) to perform actions that should be restricted. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L) indicates that the attack can be conducted remotely over the network without user interaction, requires low complexity, and only limited privileges, with impacts on integrity and availability but not confidentiality. Exploiting this flaw could enable an attacker to manipulate serial code validation or generation processes, potentially disrupting sales, enabling unauthorized product activations, or causing denial of service conditions. The vulnerability affects all versions up to 2.8.2, with no patches currently available and no known exploits in the wild. Given the plugin’s integration with WooCommerce, a widely used e-commerce platform, the vulnerability could have significant implications for online retailers relying on this tool for license management and product validation.

For European organizations, this vulnerability could disrupt e-commerce operations by allowing unauthorized manipulation of serial codes, leading to fraudulent activations or denial of service scenarios. This could result in financial losses, damage to brand reputation, and customer trust erosion. The integrity of license validation processes is critical for software vendors and digital product sellers, and exploitation could facilitate piracy or unauthorized product usage. Availability impacts could also affect transaction processing or customer experience on affected websites. Since WooCommerce is widely adopted across Europe, especially in countries with strong e-commerce sectors like Germany, the UK, France, and the Netherlands, the risk is non-trivial. Organizations in these countries that use the Vollstart plugin without proper access controls are particularly vulnerable. Additionally, regulatory compliance considerations such as GDPR may be implicated if the disruption leads to data processing issues or customer complaints.

Organizations should immediately audit and restrict access permissions to the Vollstart Serial Codes Generator and Validator plugin interfaces, ensuring only trusted administrators have the necessary privileges. Implement network-level access controls to limit exposure of plugin management endpoints. Monitor logs and system activity for unusual serial code generation or validation requests that could indicate exploitation attempts. Since no official patches are currently available, consider temporarily disabling the plugin or replacing it with alternative solutions that have robust access controls. Engage with the vendor for updates and apply patches promptly once released. Additionally, conduct regular security assessments of WooCommerce plugins and maintain an inventory of installed extensions to quickly identify and remediate vulnerabilities. Employ web application firewalls (WAFs) to detect and block suspicious requests targeting the plugin’s functionality.