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CVE-2026-14559 – Unauthenticated Account Takeover – Teddy Bear Customize Addon ≤ 1.0.5 (WordPress Pl

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Summary

CVE-2026-14559 is a critical authentication bypass (CWE-287: Improper Authentication) affecting the Teddy Bear Customize Addon plugin for WordPress, versions up to and including 1.0.5. The plugin’s login logic fails to verify a user’s password before authenticating them, allowing an unauthenticated remote attacker to log in as any registered user — including administrators — by supplying only that account’s email address. The flaw carries a CVSS v3.1 base score of 9.8 (Critical).

Technical details

  • Root cause: The plugin’s authentication routine accepts an email address as sufficient proof of identity and does not perform the required password verification step before establishing an authenticated session.
  • Trigger conditions: No prior authentication, special privileges, or user interaction is required; an attacker only needs to know (or guess/enumerate) a valid registered email address on the target site.
  • Attack vector: Network-based (remote), low attack complexity, requiring no user interaction (AV:N/AC:L/PR:N/UI:N).
  • Impact: Full account takeover of any registered user, including site administrators, resulting in complete loss of confidentiality, integrity, and availability of the affected WordPress site.

Affected software

  • Teddy Bear Customize Addon (WordPress plugin) — all versions through 1.0.5 (inclusive)

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: As of the time of writing, no patched version of the plugin has been released. Site owners should immediately deactivate and remove the Teddy Bear Customize Addon plugin until a fix is made available, and monitor for a vendor update.
  • If no patch is available:
    • Deactivate the plugin on all affected WordPress installations.
    • Monitor user accounts, especially administrator accounts, for unauthorized logins or suspicious activity.
    • Enforce multi-factor authentication (MFA) on WordPress accounts where possible to reduce the impact of credential/authentication bypass issues.
    • Restrict or monitor access to login-related endpoints exposed by the plugin via a web application firewall (WAF) as a compensating control.
    • Rotate credentials and review audit logs for any accounts that may have been accessed during the exposure window.

References

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