What the vulnerability does
01Description
The Prismatic plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'prismatic_encoded' pseudo-shortcode in all versions up to, and including, 3.7.3. This is due to insufficient input sanitization and output escaping on user-supplied attributes within the 'prismatic_decode' function. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page by submitting a comment containing a crafted 'prismatic_encoded' pseudo-shortcode.
Explanation of Vulnerability in Simple Terms
02Summary
Prismatic versions up to 3.7.3 contain a cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts into the application. The vulnerability requires no user interaction and can affect other users or systems interacting with the vulnerable instance. Upgrade to version 3.7.4 or later to remediate.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in users' browsers and affect the integrity of displayed content.
Potential impact on your site
04Site Impact
Users visiting affected pages may have their sessions compromised or see altered content; attackers can steal credentials or redirect users.
Conditions required to exploit
05Prerequisites
Network access to the Prismatic instance; no authentication or user interaction required.
Key dates
06Disclosure timeline
April 16, 2026
CVE published
April 16, 2026
Record updated
