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.

Code

The project this record applies to. Exploit listings stay in References.

• Plugin source · wordpress.org

Timeline

Detection, updates, and resolution for this record.

1. Apr 11, 2026 · NIST NVD

   Detected

   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 ac

2. Jun 17, 2026 · NIST NVD

   Updated

   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 ac

Sources

• CVE.orgVulnerability recordCVE-2026-3498

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-3498

  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 atta

  nvd.nist.gov

References

• Reference · plugins.trac.wordpress.org
• Reference · plugins.trac.wordpress.org
• Reference · plugins.trac.wordpress.org
• Reference · wordfence.com