Medium severity6.4NVD Advisory· Published Jun 13, 2026· Updated Jun 15, 2026
CVE-2026-9629
CVE-2026-9629
Description
The Canvas plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tag' parameter in all versions up to, and including, 2.5.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2<=2.5.2+ 1 more
- (no CPE)range: <=2.5.2
- (no CPE)range: <=2.5.2
Package: https://wordpress.org/plugins/canvas
Patches
Vulnerability mechanics
References
6- plugins.trac.wordpress.org/browser/canvas/tags/2.5.2/components/basic-elements/block-section-heading/render.phpnvd
- plugins.trac.wordpress.org/browser/canvas/tags/2.5.2/components/basic-elements/block-section-heading/render.phpnvd
- plugins.trac.wordpress.org/browser/canvas/tags/2.5.2/gutenberg/custom-blocks/index.phpnvd
- plugins.trac.wordpress.org/changeset/3553553/canvas/trunk/components/basic-elements/block-section-heading/render.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/f93d70e4-01c5-44e8-b7d5-0837bee53b8dnvd
News mentions
2- Wordfence Intelligence Weekly WordPress Vulnerability Report (June 8, 2026 to June 14, 2026)Wordfence Blog · Jun 18, 2026
- WordPress Plugin Ecosystem: 25 CVEs Disclosed in Two-Day Wave, Three CriticalVypr Intelligence · Jun 13, 2026