CVE-2025-1664: Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
Description
The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Parallax slider in all versions up to, and including, 5.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Classification
CVE ID: CVE-2025-1664
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.4
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Problem Types
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Affected Products
Vendor: wpdevteam
Product: Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 4.19% (scored less or equal to compared to others)
EPSS Date: 2025-04-06 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-1664https://www.wordfence.com/threat-intel/vulnerabilities/id/6abfa01b-e2ec-412c-a17d-e8bd1f5ac228?source=cve
https://plugins.trac.wordpress.org/changeset/3250957/essential-blocks/tags/5.3.2/assets/blocks/parallax-slider/frontend.js