CVE-2025-4420

MEDIUM

Vayu Blocks <= 1.3.1 - Authenticated Stored XSS via containerWidth

Title source: llm
STIX 2.1

Description

The Vayu Blocks – Gutenberg Blocks for WordPress & WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘containerWidth’ parameter in all versions up to, and including, 1.3.1 due to a missing capability check on the vayu_blocks_option_panel_callback() function and insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

References (4)

Core 4

Scores

CVSS v3 6.4
EPSS 0.0024
EPSS Percentile 14.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (2)
themehunk/Vayu Blocks – Gutenberg Blocks for WordPress & WooCommerce < 1.3.1
themehunk/Vayu Blocks – Website Builder for the Block Editor < 1.3.1
Published Jun 03, 2025
Tracked Since Feb 18, 2026