CVE-2026-7661 is a stored cross-site scripting vulnerability in the Bootstrap Shortcode WordPress plugin by shamim_d. It affects all versions up to and including 1.0. The issue is caused by improper neutralization of input during web page generation, specifically insufficient sanitization and escaping of attributes in the `box` shortcode. This allows authenticated users with Contributor or higher privileges to inject arbitrary JavaScript that executes in the context of other users viewing the page. The vulnerability has a CVSS 3.1 score of 6.4 (medium severity), with attack vector network, low attack complexity, privileges required at the low level, no user interaction needed, and impacts confidentiality and integrity with no availability impact. No patch or official remediation has been published, and no known exploits have been reported.

An attacker with Contributor-level or higher access can inject malicious scripts into pages via the vulnerable shortcode. These scripts execute in the browsers of users who view the infected pages, potentially leading to theft of sensitive information or unauthorized actions within the affected WordPress site. The impact affects confidentiality and integrity but does not affect availability. There are no known exploits in the wild currently.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict Contributor-level access to trusted users only and consider disabling or removing the Bootstrap Shortcode plugin if possible. Monitor for plugin updates from the vendor addressing this vulnerability.