CVE-2026-16299 Single Sign On For TNG < 2.2.0 - Unauthenticated Arbitrary Password Reset
Unauthenticated attackers can reset arbitrary user passwords, including administrators, leading to full site takeover in the Single Sign On For TNG plugin.
- 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-2026-16299?
CVE-2026-16299 is a critical authentication bypass vulnerability in Unknown Single Sign On For TNG, published on 10 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Single Sign On For TNG WordPress plugin before 2.2.0 does not properly validate a password reset request, allowing unauthenticated attackers to reset the password of arbitrary users, including administrators, which could lead to a full site takeover.
Weakness: CWE-287
Which versions are affected by CVE-2026-16299?
How do I fix CVE-2026-16299?
No fix has been published for CVE-2026-16299 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-2026-16299 being exploited?
There is no known exploitation of CVE-2026-16299 in the wild and no public exploit code.
Sources
Also known as GHSA-vqxg-c5fw-r4w9.