How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability none.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: High — administrative rights are needed first.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
- Integrity impact: Low — limited, and the attacker does not choose what is affected.
- Availability impact: None.
Weakness class
CVE-2026-6816 is classified as CWE-267: Privilege Defined With Unsafe Actions. A particular privilege, role, capability, or right can be used to perform unsafe actions that were not intended, even when it is assigned to the correct entity.
Affected software
CVE-2026-6816 is recorded against 1 package.
- tfa-basic-plugins (from 7.x-1.0 up to 7.x-1.3)
Timeline and source
Published on 28 May 2026 and last revised on 21 July 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.
References
d7es.tag1.com
www.herodevs.com
www.herodevs.com
Same weakness in other software
These advisories are the same class of weakness (CWE-267: Privilege Defined With Unsafe Actions) in other software:
