Kadence Blocks <= 3.7.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Identity Block Inner Image Content (stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.36 % · percentile 29 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Wordfence
- NVD status
- Deferred
Description
The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Identity Block Inner Image Content in all versions up to, and including, 3.7.8.1 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. This vulnerability is only triggerable when the block's urlTransparent attribute is set to a non-empty value, as this is a required precondition for the vulnerable code path in build_html() to be reached.
Weaknesses (CWE)
- CWE-79 — Improper Neutralization of Input During Web Page Generation
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/620bd934-327e-4509-a5e0-b910654af29b?source=cve
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/blocks/class-kadence-blocks-identity-block.php#L117
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/blocks/class-kadence-blocks-identity-block.php#L108
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.8/includes/blocks/class-kadence-blocks-identity-block.php#L162
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.2/includes/blocks/class-kadence-blocks-identity-block.php#L117
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.2/includes/blocks/class-kadence-blocks-identity-block.php#L108
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.2/includes/blocks/class-kadence-blocks-identity-block.php#L162
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3627652%40kadence-blocks&new=3627652%40kadence-blocks
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | Wordfence |
| CVSS 3.1 | MEDIUM 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | NVD · security@wordfence.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-51749
- GCVE · GCVE-0-2026-18062
Affected products
| Product | Versions |
|---|---|
| stellarwp · Kadence Blocks — Page Builder Toolkit for Gutenberg Editor | affected 0 ≤ 3.7.8.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |