CVE-2026-77771 miniOrange 2FA (Free & Pro) - 2FA Bypass via Session-Scoped OTP Lockout
Attackers with valid passwords can bypass two-factor authentication by manipulating session identifiers to make unlimited OTP guesses.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77771?
CVE-2026-77771 is a high-severity authentication bypass vulnerability in Unknown miniOrange 2FA, published on 10 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The miniOrange 2FA WordPress plugin before 6.3.1, miniOrange 2FA WordPress plugin before 19.3 does not scope its second-factor attempt limit to the account being attacked, keying it instead to an identifier the client supplies and can change at will, allowing an attacker who already knows a victim's password to make unlimited one-time-passcode guesses and defeat the second factor. A second validation endpoint applies no attempt limit at all.
Weakness: CWE-287
Which versions are affected by CVE-2026-77771?
How do I fix CVE-2026-77771?
No fix has been published for CVE-2026-77771 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-2026-77771 being exploited?
There is no known exploitation of CVE-2026-77771 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-fg24-3rh9-37gf.