CVE-2026-2367 is a stored cross-site scripting vulnerability identified in the ays-pro Secure Copy Content Protection and Content Locking plugin for WordPress, affecting all versions up to and including 5.0.1. The vulnerability stems from insufficient sanitization and escaping of user-supplied attributes in the 'ays_block' shortcode. Authenticated attackers with contributor-level access or higher can exploit this flaw by injecting arbitrary JavaScript code into pages via the shortcode parameters. Because the malicious script is stored persistently, it executes in the context of any user who accesses the infected page, potentially compromising user sessions, stealing cookies, or performing unauthorized actions on behalf of users. The vulnerability requires no user interaction beyond page access but does require authentication with contributor or higher privileges, which limits but does not eliminate risk. The CVSS 3.1 base score is 6.4 (medium), reflecting network attack vector, low attack complexity, privileges required, no user interaction, and partial confidentiality and integrity impact. No known public exploits have been reported yet. The vulnerability highlights a common web security issue—improper neutralization of input during web page generation (CWE-79).

The impact of CVE-2026-2367 can be significant for organizations relying on the affected WordPress plugin. Successful exploitation allows attackers with contributor-level access to inject persistent malicious scripts, which execute in the browsers of users visiting the compromised pages. This can lead to session hijacking, theft of sensitive information such as authentication tokens, unauthorized actions performed with victim user privileges, and potential defacement or redirection attacks. Since contributors can typically create and edit content, the attack surface includes many websites with collaborative content workflows. The vulnerability can undermine user trust and lead to reputational damage, data breaches, and compliance violations. Although the attack requires authenticated access, many WordPress sites allow contributor roles for content creators, making the threat realistic. The absence of known exploits reduces immediate risk but does not preclude future attacks. Organizations with high traffic or sensitive user data are at greater risk.

To mitigate CVE-2026-2367, organizations should immediately review and restrict contributor-level permissions to trusted users only, minimizing the risk of malicious shortcode injection. Administrators should audit existing content for suspicious 'ays_block' shortcode usage and remove or sanitize any untrusted inputs. Until an official patch is released, consider disabling or removing the ays-pro Secure Copy Content Protection and Content Locking plugin if feasible. Implement web application firewalls (WAFs) with custom rules to detect and block suspicious shortcode parameters or script injections related to this vulnerability. Encourage users to apply the principle of least privilege, limiting contributor roles to only those necessary. Monitor logs and user activity for unusual content changes or script insertions. Once a patch is available, promptly update the plugin to the fixed version. Additionally, educate content creators about safe content practices and the risks of injecting untrusted code.