What the vulnerability does
01Description
The Institute Management plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Enquiry Form Title' setting in all versions up to, and including, 5.5. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
Institute Management – Learning Management System versions 5.5 and earlier contain a cross-site scripting vulnerability in a network-accessible component. An authenticated administrator with high privileges can inject malicious scripts that execute in other users' browsers, potentially affecting the entire site. The vulnerability requires specific conditions to exploit and has limited direct impact, but could be chained with other attacks.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers when they visit affected pages.
Potential impact on your site
04Site Impact
Compromised admin accounts could inject malicious code affecting all site visitors; data theft or malware distribution possible.
Conditions required to exploit
05Prerequisites
Attacker must be authenticated as a high-privilege administrator; no user interaction required from victims.
Key dates
06Disclosure timeline
April 22, 2026
CVE published
April 22, 2026
Record updated
