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CVE-2026-8760

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

Published: May 27, 2026Updated: May 27, 2026 Sources: CVE List NVD
NVD MITRE
9.8CVSS
CRITICAL

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

CWE-307

Affected Products

Login with OTP
india-web-developer

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/ad22cb24-e6a0-456f-afe8-88a39acd97d3?source=cve
wordfence.com
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
and 7 more references View all →

Timeline

Published
May 27, 2026
Last Updated
May 27, 2026

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