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CVE-2019-25738: WordPress Hybrid Composer 1.4.6 Unauthenticated Settings Change

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-04 · updated 2026-07-22
• Weakness: CWE-306

Description

WordPress Hybrid Composer 1.4.6 contains an unauthenticated settings change vulnerability that allows unauthenticated attackers to modify WordPress options by exploiting the hc_ajax_save_option action. Attackers can send POST requests to the admin-ajax.php endpoint with the action parameter set to hc_ajax_save_option to enable user registration and set the default role to administrator, enabling account takeover.

Affected products

• framework-y Hybrid Composer: 1.4.6

References

• http://wordpress.framework-y.com
• http://wordpress.framework-y.com/hybrid-composer/
• https://labs.sucuri.net/wptf-hybrid-composer-unauthenticated-arbitrary-options-update/
• https://www.exploit-db.com/exploits/47154
• https://www.vulncheck.com/advisories/wordpress-hybrid-composer-unauthenticated-settings-change

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