Unauthenticated Bypass Vulnerability in hCaptcha Plugin for WordPress
CVE-2026-103347

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Hcaptcha For WP
Vendor
CVE Published:
1 October 2026

What is CVE-2026-103347?

The hCaptcha for WordPress plugin version 5.3.0 and earlier has a significant vulnerability that allows unauthenticated users to bypass intended access controls. This security flaw can potentially allow unauthorized actions on the website, exposing sensitive data and undermining security measures put in place by administrators. It is crucial for users of this plugin to update to the latest versions to mitigate any security risks associated with this vulnerability.

Affected Version(s)

hCaptcha for WP <= 5.3.0

References

https://patchstack.com/database/wordpress/plugin/hcaptcha...
vdb-entry

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

bamper1 | Patchstack Bug Bounty Program
.