PT-2026-33278 · Specialk · Prismatic

Athiwat Tiprasaharn · Published 2026-04-16 · Updated 2026-04-16 · CVE-2026-3876

NVD

CVSS v3.1

7.2

High

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-3876

Affected Products

Prismatic

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-3876 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/aa4e18b0-f871-4476-af92-42e55aabdf93?source=cve · Note
• https://twitter.com/CVEnew/status/2044701553303720385 · Twitter Post
• https://plugins.trac.wordpress.org/changeset?old_path=/prismatic/tags/3.7.3/inc/prismatic-core.php&new_path=/prismatic/tags/3.7.4/inc/prismatic-core.php · Note
• https://twitter.com/VulmonFeeds/status/2044740822768263174 · Twitter Post