Administrator account creation via unauthenticated option writes
Published Jun 4, 2026 · Updated Jun 4, 2026
Missing authentication in Hybrid Composer 1.4.6 allows remote attackers to overwrite WordPress options through an AJAX request. The hc_ajax_save_option handler accepts unauthenticated POST requests at admin-ajax.php and writes attacker-supplied option_name and content values into the options table. No account or user interaction is required; changing users_can_register and default_role permits creation of a new Administrator account.
Summary
What happened
Missing authentication in Hybrid Composer 1.4.6 allows remote attackers to overwrite WordPress options through an AJAX request. The hc_ajax_save_option handler accepts unauthenticated POST requests at admin-ajax.php and writes attacker-supplied option_name and content values into the options table. No account or user interaction is required; changing users_can_register and default_role permits creation of a new Administrator account.
The record
- CVE
- CVE-2019-25738
- Published
- Jun 4, 2026
- Updated
- Jun 4, 2026
- Vendor
- Schiocco
- Product
- Hybrid Composer
- Classifications
- CWE-306, T1136.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 4, 2026CVE publishedPublication date reported by the CVE source.
- Jun 4, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.4.6
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- WordPress Plugin Hybrid Composer 1.4.6 - Improper Access Restrictionsfunctional · demonstrated
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Technologies
Your stack
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Your stack
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