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CVE-2025-9378

22
FAUCET Score

CVE-2025-9378 describes a Stored Cross-Site Scripting (XSS) vulnerability in the Vayu Blocks – Website Builder for the Block Editor plugin for WordPress, affecting all versions up to and including 1.3.9. This flaw allows authenticated attackers with Contributor-level access or higher to inject malicious web scripts into pages via the Lottie block, which execute when a user views the compromised page. Rated as MEDIUM severity with a CVSS score of 6.4, the vulnerability has a low attack complexity and can lead to limited impact on confidentiality and integrity. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
ThemehunkVayu Blocks – Website Builder For The Block Editor
>= 0, <= 1.3.9CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 11th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/vayu-blocks/tags/1.3.5/trunk/inc/render/lottie/lottie.php
plugins.trac.wordpress.org / changeset/3351839
wordfence.com / threat-intel/vulnerabilities/id/a92d53ab-9c59-4c9c-93e5-32dd05246249