CVE-2025-11532 identifies an authorization bypass vulnerability classified as CWE-639 (Authorization Bypass Through User-Controlled Key) in the Wisly plugin for WordPress, developed by softivus. The vulnerability exists in all versions up to and including 1.0.0 due to insufficient validation of the 'wishlist_id' parameter, which is user-controlled. This parameter is used to identify and manipulate wishlists associated with different users. Because the plugin fails to verify that the 'wishlist_id' belongs to the authenticated user—or in this case, since no authentication is required—an attacker can craft requests specifying arbitrary wishlist IDs. This allows unauthorized addition or removal of items from other users' wishlists, constituting an Insecure Direct Object Reference (IDOR) vulnerability. The CVSS v3.1 base score is 5.3, reflecting network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), no confidentiality impact (C:N), low integrity impact (I:L), and no availability impact (A:N). The vulnerability compromises data integrity by enabling unauthorized modifications but does not expose confidential data or disrupt service availability. No patches or known exploits are currently available, but the vulnerability is publicly disclosed and documented in the CVE database. The plugin is typically used in WordPress environments, often in e-commerce or retail contexts where wishlists are a common feature. Attackers exploiting this flaw could manipulate user wishlists, potentially impacting user trust and business reputation.

For European organizations, especially those operating e-commerce or retail websites using WordPress with the Wisly plugin, this vulnerability poses a risk to data integrity and user trust. Unauthorized manipulation of wishlists could lead to customer dissatisfaction, loss of confidence, and potential reputational damage. While the vulnerability does not expose sensitive personal data or disrupt service availability, it undermines the integrity of user-specific data, which could be exploited for fraudulent activities or to degrade user experience. Organizations relying on wishlists as part of their sales funnel or marketing strategies may see indirect financial impacts if customers lose trust in the platform's security. Additionally, regulatory scrutiny under GDPR could arise if the integrity breach leads to broader user data concerns or impacts user rights. The ease of exploitation—requiring no authentication or user interaction—means attackers can automate attacks at scale, increasing the risk of widespread abuse if the vulnerability remains unpatched.

To mitigate CVE-2025-11532, organizations should implement strict server-side validation to ensure that any 'wishlist_id' parameter corresponds to the authenticated user's own wishlist. This involves verifying ownership before processing any add or remove item requests. Since the vulnerability allows unauthenticated access, adding authentication requirements for wishlist modifications is critical. If immediate patching is not possible due to lack of vendor fixes, organizations can deploy Web Application Firewall (WAF) rules to detect and block suspicious requests that attempt to manipulate arbitrary wishlist IDs. Monitoring and logging wishlist modification activities can help identify anomalous behavior indicative of exploitation attempts. Additionally, organizations should consider disabling or replacing the Wisly plugin with alternatives that enforce proper access controls. Regular security assessments and plugin updates should be part of the maintenance routine to prevent similar vulnerabilities. Finally, educating development teams on secure coding practices related to authorization checks can prevent recurrence.