The VK All in One Expansion Unit plugin for WordPress is vulnerable to Stored Cross-Site...
🔗 CVE IDs covered (1)
📋 Description
The VK All in One Expansion Unit plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'vkExUnit_cta_img_position' Post Meta in all versions up to, and including, 9.118.0 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. The sanitize_text_field callback applied on save does not strip double-quote characters or on* event-handler attributes, and the output filter Vk_Call_To_Action::safe_kses_post() only rewrites disallowed iframe elements while returning all other content verbatim, leaving the injected payload intact in the rendered HTML.
🔗 References (12)
- https://nvd.nist.gov/vuln/detail/CVE-2026-17586
- https://plugins.trac.wordpress.org/browser/vk-all-in-one-expansion-unit/tags/9.116.0/inc/block-editor-panels/enqueue.php#L195
- https://plugins.trac.wordpress.org/browser/vk-all-in-one-expansion-unit/tags/9.116.0/inc/call-to-action/package/block/index.php#L281
- https://plugins.trac.wordpress.org/browser/vk-all-in-one-expansion-unit/tags/9.116.0/inc/call-to-action/package/class-vk-call-to-action.php#L747
- https://plugins.trac.wordpress.org/browser/vk-all-in-one-expansion-unit/tags/9.116.0/inc/call-to-action/package/view-actionbox.php#L72
- https://plugins.trac.wordpress.org/browser/vk-all-in-one-expansion-unit/tags/9.118.0/inc/block-editor-panels/enqueue.php#L195
- https://plugins.trac.wordpress.org/browser/vk-all-in-one-expansion-unit/tags/9.118.0/inc/call-to-action/package/block/index.php#L281
- https://plugins.trac.wordpress.org/browser/vk-all-in-one-expansion-unit/tags/9.118.0/inc/call-to-action/package/class-vk-call-to-action.php#L747
- https://plugins.trac.wordpress.org/browser/vk-all-in-one-expansion-unit/tags/9.118.0/inc/call-to-action/package/view-actionbox.php#L72
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3631372%40vk-all-in-one-expansion-unit&new=3631372%40vk-all-in-one-expansion-unit
- https://www.wordfence.com/threat-intel/vulnerabilities/id/04b9c0c4-3f1a-4984-9b24-6de3dc78bde0?source=cve
- https://github.com/advisories/GHSA-738x-57qm-fc2r