CVE-2026-89080 Really Simple Security < 9.8.1 - Unauthenticated 2FA Bypass via Email Provider State Demotion
An attacker with a known password can bypass two-factor authentication to gain administrator access to the WordPress site.
- 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-2026-89080?
CVE-2026-89080 is a high-severity authentication bypass vulnerability in Unknown Really Simple Security, published on 13 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Really Simple Security WordPress plugin before 9.8.1 does not prevent an unauthenticated request from resetting an account's completed email two-factor enrolment, allowing an attacker who already knows the account's password to bypass the second factor and obtain that user's session, up to administrator.
Weakness: CWE-287
Which versions are affected by CVE-2026-89080?
How do I fix CVE-2026-89080?
No fix has been published for CVE-2026-89080 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-2026-89080 being exploited?
There is no known exploitation of CVE-2026-89080 in the wild and no public exploit code.
Sources
Also known as GHSA-36qh-hpmx-m9cv.