CVE-2025-47526 is a medium-severity vulnerability classified under CWE-862 (Missing Authorization) found in the GS Variation Swatches plugin for WooCommerce, developed by GS Plugins. This vulnerability arises due to improperly configured access control mechanisms within the plugin, allowing users with limited privileges (PR:L - low privileges) to perform unauthorized actions that should be restricted. The vulnerability affects all versions up to and including 3.0.4. The CVSS 3.1 base score is 5.4, indicating a moderate risk level. The vector string (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L) reveals that the attack can be executed remotely over the network without user interaction, requires low privileges, and impacts the integrity and availability of the affected system, but not confidentiality. Specifically, an attacker with some level of authenticated access can exploit the missing authorization checks to modify or disrupt the plugin’s functionality, potentially altering product variation displays or causing denial of service conditions. Since WooCommerce is a widely used e-commerce platform on WordPress, this vulnerability could be leveraged to disrupt online stores’ operations or manipulate product presentation, which may lead to loss of customer trust or revenue. No known exploits are currently reported in the wild, and no patches have been linked yet, indicating that mitigation may require vendor updates or manual access control reviews.

For European organizations running WooCommerce-based e-commerce sites using the GS Variation Swatches plugin, this vulnerability poses a risk to the integrity and availability of their online storefronts. Attackers exploiting this flaw could alter product variation displays, potentially misleading customers or disrupting sales processes. Additionally, availability impacts could result in downtime or degraded user experience, harming brand reputation and causing financial losses. Given the reliance on e-commerce in Europe, especially in countries with strong retail sectors like Germany, France, and the UK, this vulnerability could affect a significant number of businesses. The lack of confidentiality impact reduces the risk of data breaches, but the integrity and availability issues still represent a substantial threat to business continuity and customer trust. Organizations with multi-user environments where users have varying privilege levels are particularly at risk, as low-privileged users could escalate their capabilities through this flaw.

European organizations should immediately audit their WooCommerce installations to identify if the GS Variation Swatches plugin version 3.0.4 or earlier is in use. Until an official patch is released, administrators should restrict plugin access to trusted users only and review user roles and permissions to minimize exposure. Implementing web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting the plugin’s endpoints can reduce exploitation risk. Monitoring logs for unusual activity related to product variation management is recommended. Organizations should also subscribe to GS Plugins’ security advisories for timely patch releases and apply updates promptly once available. As a longer-term measure, consider isolating e-commerce management interfaces behind VPNs or additional authentication layers to limit access. Finally, conducting penetration testing focused on authorization controls in WooCommerce plugins can help identify similar weaknesses proactively.