CVE-2025-70340 Missing authorization in n/a
Authenticated users can manipulate API parameters to impersonate system messages and modify trusted data, leading to privilege escalation.
- 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-2025-70340?
CVE-2025-70340 is a medium-severity missing authorization vulnerability in n/a, published on 26 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A Broken Access Control vulnerability exists in ThingsBoard Professional Edition (PE) 4.21 and below, within the Alarms comments functionality. An authenticated customer user can manipulate the respective API request parameters to create or modify system-generated alarm comments. This allows unauthorized impersonation of system messages and modification of trusted system-owned data, resulting in vertical privilege escalation and potential integrity violations.
Weakness: CWE-284
Which versions are affected by CVE-2025-70340?
How do I fix CVE-2025-70340?
No fix has been published for CVE-2025-70340 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-70340 being exploited?
There is no known exploitation of CVE-2025-70340 in the wild and no public exploit code.
Sources
Also known as GHSA-433r-pgvp-mq8p.