Unauthenticated Bypass Vulnerability in Captcha by BestWebSoft
CVE-2026-39772

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Captcha By Bestwebsoft
Vendor
CVE Published:
6 October 2026

What is CVE-2026-39772?

An unauthenticated bypass vulnerability exists in the Captcha plugin developed by BestWebSoft for WordPress, specifically affecting versions up to 5.2.8. This flaw allows unauthorized users to circumvent authentication mechanisms, posing security risks for websites utilizing the plugin. The vulnerability can potentially enable malicious actors to exploit the system and gain access without proper authentication.

Affected Version(s)

Captcha by BestWebSoft <= 5.2.8

References

https://patchstack.com/database/wordpress/plugin/captcha-...
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

Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program
.