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CVE-2025-9378
Vayu Blocks <= 1.3.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via Multiple Block Attributes
Medium6.4EPSS 0.25%
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.25% · top 84% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.
Weakness
Affected products
themehunk · Vayu Blocks – Website Builder for the Block Editor
- affected ≤ 1.3.9
References (3)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a92d53ab-9c59-4c9c-93e5-32dd05246249?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/vayu-blocks/tags/1.3.5/trunk/inc/render/lottie/lottie.php#L102 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset/3351839/ (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-9378)Record last updated .