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PatchSiren cyber security CVE debrief

CVE-2019-25738 framework-y CVE debrief

CVE-2019-25738 is a critical vulnerability in WordPress Hybrid Composer 1.4.6. It 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.

Vendor
framework-y
Product
Hybrid Composer
CVSS
CRITICAL 9.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-22
Advisory published
2026-06-04
Advisory updated
2026-07-22

Who should care

Administrators of WordPress sites using Hybrid Composer 1.4.6 should prioritize patching this vulnerability to prevent potential attacks.

Technical summary

The vulnerability exists in the hc_ajax_save_option action of Hybrid Composer 1.4.6. This action allows unauthenticated attackers to modify WordPress options. The CVSS score for this vulnerability is 9.3, indicating a critical severity.

Defensive priority

High

Recommended defensive actions

  • Update Hybrid Composer to a patched version.
  • Restrict access to the admin-ajax.php endpoint.
  • Monitor for suspicious activity on the WordPress site.

Evidence notes

The CVE record and NVD detail provide evidence of the vulnerability's existence and its critical severity.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-25738 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-25738

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2019-25738 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-25738

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.