Unauthenticated Settings Change Vulnerability in WordPress Hybrid Composer
CVE-2019-25738

9.3CRITICAL

Key Information:

Vendor

WordPress
Status
Hybrid Composer
Vendor
CVE Published:
4 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-25738?

WordPress Hybrid Composer version 1.4.6 is susceptible to an unauthenticated settings change vulnerability. This flaw allows attackers to send crafted POST requests to the admin-ajax.php endpoint with the action parameter set to hc_ajax_save_option. By exploiting this vulnerability, an unauthenticated user can modify critical WordPress options, such as enabling user registration and assigning the default role to administrator, leading to potential account takeover and unauthorized access to sensitive areas of the WordPress site.

Affected Version(s)

Hybrid Composer 1.4.6

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2019-25738 - Proof of Concept

References

https://www.exploit-db.com/exploits/47154
exploit
http://wordpress.framework-y.com
product
http://wordpress.framework-y.com/hybrid-composer/
product

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

yasin
.