Medium severity6.4NVD Advisory· Published Sep 3, 2025· Updated Apr 15, 2026

CVE-2025-9378

Description

The Vayu Blocks – Website Builder for the Block Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple attributes in the Lottie block in all versions up to, and including, 1.3.9 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.

Affected products

WordPress/Vayu Blocksinferred
Range: <=1.3.9
Package: https://wordpress.org/plugins/vayu-blocks
Vayu/Vayu Blocksllm-create
Range: <=1.3.9

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

plugins.trac.wordpress.org/browser/vayu-blocks/tags/1.3.5/trunk/inc/render/lottie/lottie.phpnvd
plugins.trac.wordpress.org/changeset/3351839/nvd
www.wordfence.com/threat-intel/vulnerabilities/id/a92d53ab-9c59-4c9c-93e5-32dd05246249nvd

News mentions

No linked articles in our index yet.

cvss	0.416
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000