PT-2025-23592 · WordPress · Vayu Blocks

Cheng Liu · CVE-2025-4420 · Published 2025-06-03 · Updated 2025-06-03

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Vayu Blocks – Gutenberg Blocks for WordPress & WooCommerce plugin for WordPress version 1.3.1 and earlier

Description The issue is related to Stored Cross-Site Scripting via the containerWidth parameter. This is due to a missing capability check on the vayu blocks option panel callback() function and insufficient input sanitization and output escaping. Authenticated attackers with Subscriber-level access and above can inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Recommendations For versions 1.3.1 and earlier, update to a version that includes a fix for the missing capability check and insufficient input sanitization and output escaping. As a temporary workaround, consider disabling the vayu blocks option panel callback() function until a patch is available. Restrict access to the containerWidth parameter to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-4420

Affected Products

Vayu Blocks

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2025-4420 · Security Note
• https://t.me/cvenotify/124437 · Telegram Post
• https://plugins.trac.wordpress.org/changeset/3303594 · Note
• https://wordpress.org/plugins/vayu-blocks/#developers · Note
• https://twitter.com/VulmonFeeds/status/1929865421965926595 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/db01bc0a-4508-4fb5-941d-3f1a52528e2b?source=cve · Note
• https://plugins.trac.wordpress.org/browser/vayu-blocks/trunk/inc/admin-api.php#L6 · Note
• https://twitter.com/CVEnew/status/1929822835096142118 · Twitter Post
• https://t.me/cvetracker/25256 · Telegram Post