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.
History

Sat, 11 Apr 2026 01:30:00 +0000

Type Values Removed Values Added
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.
Title BlockArt Blocks <= 2.2.15 - Authenticated (Author+) Stored Cross-Site Scripting via 'clientId' Block Attribute
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-11T01:24:59.386Z

Reserved: 2026-03-03T20:05:42.046Z

Link: CVE-2026-3498

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-11T02:16:02.117

Modified: 2026-04-11T02:16:02.117

Link: CVE-2026-3498

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.