The Social Icons Widget & Block by WPZOOM plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check in the add_menu_item() method hooked to admin_menu in all versions up to, and including, 4.5.8. This is due to the method performing wp_insert_post() and update_post_meta() calls to create a sharing configuration without verifying the current user has administrator-level capabilities. This makes it possible for authenticated attackers, with Subscriber-level access and above, to trigger the creation of a published wpzoom-sharing configuration post with default sharing button settings, which causes social sharing buttons to be automatically injected into all post content on the frontend via the the_content filter.
CVE-2026-4063 is a medium severity with CVSS 4.3 Vulnerability issue affecting the Plugin Social Icons Widget & Block – Social Media Icons & Share Buttons. It affects Versions up to 4.5.8 and is fixed in 4.5.9.
CVE-2026-4063 is tracked for the Plugin Social Icons Widget & Block – Social Media Icons & Share Buttons as medium severity with CVSS 4.3. The affected range is Versions up to 4.5.8. Update Social Icons Widget & Block – Social Media Icons & Share Buttons to 4.5.9 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
social-icons-widget-by-wpzoom
View on wordpress.org
|
| CVE | CVE-2026-4063 |
| Patched Versions |
4.5.9
|
| Affected Versions |
Versions up to 4.5.8
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Social Icons Widget & Block <= 4.2.17 - Authenticated (Administrator+) Stored Cross-Site Scripting
Social Icons Widget & Block by WPZOOM <= 4.2.15 - Missing Authorization
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