๐Ÿ” CVE Alert

CVE-2026-8760

CRITICAL 9.8

Login with OTP <= 1.6 - Unauthenticated Authentication Bypass via OTP Brute Force

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

The Login with OTP plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.6. This is due to an incomplete fix for CVE-2024-11178: the rate-limit/lockout check added to `otpl_login_action()` was placed only inside the OTP-generation branch and is never evaluated on the OTP-validation branch, and the generated 6-digit OTP additionally has no expiration. This makes it possible for unauthenticated attackers to brute-force the 900,000-value OTP space for any user account (including administrators) and obtain a valid `wp_set_auth_cookie()` session, leading to full site compromise.

CWE CWE-307
Vendor india-web-developer
Product login with otp
Published May 27, 2026
Last Updated May 27, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

india-web-developer / Login with OTP
<= 1.6

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/ad22cb24-e6a0-456f-afe8-88a39acd97d3?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L419 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L419 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L424 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L424 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L427 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L427 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L361 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L361 nvd.nist.gov: https://nvd.nist.gov/vuln/detail/CVE-2024-11178

Credits

Irwan Kusuma