Auth bypass in Wpzoom Social Icons Widget & Block – Media Share Buttons
CVE-2026-4063
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.
Vulnerability class: Broken Access Control
EPSS: 0.002 (11.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-4063?
- CVE-2026-4063 is a medium-severity vulnerability in Wpzoom Social Icons Widget & Block – Media Share Buttons, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-03-13.
- How severe is CVE-2026-4063?
- Medium severity. CVSS v3 base score is 4.3 out of 10.