CVE-2026-8760 Login with OTP <= 1.6 - Unauthenticated Authentication Bypass via OTP Brute Force
Unauthenticated attackers can brute-force OTPs to bypass authentication and gain administrator access due to missing rate limits and expiration.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8760?
CVE-2026-8760 is a critical authentication bypass vulnerability in india-web-developer Login with OTP, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-307
Which versions are affected by CVE-2026-8760?
How do I fix CVE-2026-8760?
No fix has been published for CVE-2026-8760 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-8760 being exploited?
There is no known exploitation of CVE-2026-8760 in the wild and no public exploit code.
Sources
Also known as GHSA-cq2x-2xjr-vm5v.