Subscriber-level sitewide button injection via missing authorization
Published Mar 13, 2026 · Updated Mar 13, 2026
Missing authorization in WPZOOM Connect 4.5.8 and earlier allows remote authenticated users to inject sharing buttons across all posts. The admin_menu-hooked add_menu_item() method calls wp_insert_post() and update_post_meta() to publish a wpzoom-sharing configuration without checking administrator capabilities. Subscriber-level access is sufficient, and the default configuration injects the buttons into every post through the the_content filter.
Summary
What happened
Missing authorization in WPZOOM Connect 4.5.8 and earlier allows remote authenticated users to inject sharing buttons across all posts. The admin_menu-hooked add_menu_item() method calls wp_insert_post() and update_post_meta() to publish a wpzoom-sharing configuration without checking administrator capabilities. Subscriber-level access is sufficient, and the default configuration injects the buttons into every post through the the_content filter.
The record
- CVE
- CVE-2026-4063
- Published
- Mar 13, 2026
- Updated
- Mar 13, 2026
- Vendor
- WPZOOM
- Product
- WPZOOM Connect: Social Icons Widget, Share Buttons & Click to Chat
- Classifications
- CWE-862, T1565.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 13, 2026CVE publishedPublication date reported by the CVE source.
- Mar 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=* <=4.5.8
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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