Read the docs

WordPress hCaptcha for WP plugin <= 5.3.0 - Bypass Vulnerability vulnerability

Priority LOW 30CWE-290Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-290.

Summary

Unauthenticated Bypass Vulnerability in hCaptcha for WP <= 5.3.0 versions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00232 14th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
hcaptchahCaptcha for WPup to 5.3.0—No fix listedCNA
  • hCaptcha for WP Vendorhcaptcha Affected up to 5.3.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-103347
  2. 2026-10-03 Alias added: GHSA-v4mg-2fcj-gw6f

References

  • TI-2026-20433 WordPress hCaptcha for WP plugin <= 4.21.1 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
  • TI-2024-03745 hCaptcha for WordPress <= 4.0.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via cf7-hcaptcha Shortcode CVSS 3.1MEDIUM 6.4

Sources