CVE-2026-3498

| EUVD-2026-21617 MEDIUM
2026-04-11 Wordfence
6.4
CVSS 3.1
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CVSS Vector

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
Low
Integrity
Low
Availability
None

Lifecycle Timeline

3
Analysis Generated
Apr 11, 2026 - 01:30 vuln.today
EUVD ID Assigned
Apr 11, 2026 - 01:30 euvd
EUVD-2026-21617
CVE Published
Apr 11, 2026 - 01:24 nvd
MEDIUM 6.4

Tags

XSS WordPress

Description

The BlockArt Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'clientId' block attribute in all versions up to, and including, 2.2.15. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Analysis

Stored Cross-Site Scripting in BlockArt Blocks plugin for WordPress allows authenticated attackers with Author-level or higher permissions to inject arbitrary JavaScript into page content via the 'clientId' block attribute due to insufficient input sanitization and output escaping. An attacker can craft malicious block content that executes in the browsers of all users viewing the compromised page. …

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Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0

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CVE-2026-3498 vulnerability details – vuln.today
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