CVE-2025-70340
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductProfessional Edition (PE)
PublishedAug 26, 2026
First seenAug 26, 2026
Weakness typeCWE-284Improper access control
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ThingsBoard Professional Edition (PE) | v ≤ 4.21 | — |
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