Medium severity6.4NVD Advisory· Published Apr 11, 2026· Updated Apr 24, 2026
CVE-2026-3498
CVE-2026-3498
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.
Affected products
1- Range: <=2.2.15
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- plugins.trac.wordpress.org/browser/blockart-blocks/tags/2.2.15/includes/BlockTypes/PostTemplate.phpnvd
- plugins.trac.wordpress.org/browser/blockart-blocks/tags/2.2.15/includes/BlockTypes/QueryLoop.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/7d0cb432-785a-4f38-830f-72b95e65aa5anvd
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (April 6, 2026 to April 12, 2026)Wordfence Blog · Apr 16, 2026