CVE-2025-62091 identifies a missing authorization vulnerability (CWE-862) in the Vollstart Serial Codes Generator and Validator plugin with WooCommerce Support, affecting all versions up to 2.8.2. This vulnerability arises from improperly configured access control mechanisms, allowing users with limited privileges (such as authenticated but non-administrative users) to perform unauthorized actions that should be restricted. The plugin is commonly used to generate and validate serial codes for digital products or services sold via WooCommerce, a popular e-commerce platform for WordPress. Exploiting this flaw could enable attackers to manipulate serial code validation processes, potentially issuing unauthorized serial codes, invalidating legitimate ones, or disrupting the validation service. The CVSS v3.1 score of 5.4 reflects a medium severity, with an attack vector over the network (AV:N), low attack complexity (AC:L), requiring privileges (PR:L), no user interaction (UI:N), unchanged scope (S:U), no confidentiality impact (C:N), but with integrity (I:L) and availability (A:L) impacts. No public exploits are known, but the vulnerability could be leveraged in targeted attacks against e-commerce sites relying on this plugin. The absence of a patch link suggests that a fix may not yet be available, highlighting the importance of interim protective measures. The vulnerability's exploitation could undermine trust in digital product licensing and cause financial or reputational damage to affected businesses.

For European organizations, especially those operating e-commerce platforms using WooCommerce with the Vollstart Serial Codes Generator and Validator plugin, this vulnerability poses a risk to the integrity and availability of their digital product licensing systems. Unauthorized users could generate or validate serial codes improperly, leading to potential revenue loss through fraud or unauthorized product access. Disruption of serial code validation services could also degrade customer experience and trust. Given the plugin’s role in licensing, exploitation could facilitate software piracy or unauthorized software distribution. The medium severity indicates a moderate risk, but the impact could be significant for businesses heavily reliant on digital sales. Additionally, compromised systems could be leveraged for further attacks within the network. European data protection regulations (e.g., GDPR) may also be implicated if exploitation leads to broader system compromise or data exposure, increasing legal and compliance risks.

1. Immediately audit and restrict access permissions to the Vollstart plugin, ensuring only trusted administrators have the necessary privileges. 2. Implement strict role-based access control (RBAC) policies within WordPress and WooCommerce to minimize privilege escalation opportunities. 3. Monitor logs for unusual serial code generation or validation activities that could indicate exploitation attempts. 4. Temporarily disable or remove the Vollstart Serial Codes Generator and Validator plugin if feasible until a security patch is released. 5. Engage with the vendor or community to obtain or develop patches addressing the missing authorization controls. 6. Employ web application firewalls (WAF) with custom rules to detect and block suspicious requests targeting the plugin’s endpoints. 7. Conduct regular security assessments and penetration testing focused on access control mechanisms within the e-commerce environment. 8. Educate administrators on the risks of privilege misuse and the importance of secure plugin management. 9. Maintain up-to-date backups of e-commerce configurations and data to enable rapid recovery if disruption occurs.