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.
Use the related hub and response guides to connect this CVE-2026-4063 report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
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.
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions up to 4.5.8.
Confirm Social Icons Widget & Block – Social Media Icons & Share Buttons is updated to 4.5.9 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| 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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