CVE-2025-3276: SKT Blocks – Gutenberg based Page Builder <= 1.9 - Authenticated (Contributor+) Stored Cross-Site Scripting
Description
The SKT Blocks – Gutenberg based Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Post Carousel block in all versions up to, and including, 1.9 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-2025-3276
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: sonalsinha21
Product: SKT Blocks – Gutenberg based Page Builder
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 7.89% (scored less or equal to compared to others)
EPSS Date: 2025-04-18 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-3276https://www.wordfence.com/threat-intel/vulnerabilities/id/d9345eaa-c8c0-4830-a9af-48305a2f80fd?source=cve
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3267889%40skt-blocks&new=3267889%40skt-blocks&sfp_email=&sfph_mail=