CVE-2025-9378
Medium
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.
SeverityMedium
CVSS6.4
Exploit probability—
ProductVayu Blocks – Website Builder for the Block Editor
PublishedSep 3, 2025
First seenSep 3, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| themehunk Vayu Blocks – Website Builder for the Block Editor | v ≤ 1.3.9 | — |
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