CVE-2026-8760
Login with OTP <= 1.6 - Unauthenticated Authentication Bypass via OTP Brute Force
Description
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.
INFO
Published Date :
May 27, 2026, 7:16 a.m.
Last Modified :
May 27, 2026, 2:50 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-8760
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update the Login with OTP plugin to the latest version.
- Ensure OTPs have expiration implemented.
- Verify rate-limiting is enforced during OTP validation.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-8760.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-8760 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-8760
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-8760 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-8760 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
May. 27, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-307 Added Reference https://nvd.nist.gov/vuln/detail/CVE-2024-11178 Added Reference https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L361 Added Reference https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L419 Added Reference https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L424 Added Reference https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L427 Added Reference https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L361 Added Reference https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L419 Added Reference https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L424 Added Reference https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L427 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/ad22cb24-e6a0-456f-afe8-88a39acd97d3?source=cve