Stored Cross-Site Scripting Vulnerability in Tactical RMM by Amidaware
CVE-2026-121578

6.1MEDIUM

Key Information:

Vendor

Amidaware

Status
Tactical Rmm
Vendor
CVE Published:
3 November 2026

What is CVE-2026-121578?

Tactical RMM is susceptible to a stored Cross-Site Scripting (XSS) vulnerability due to insufficient input validation and output encoding. This issue allows attackers to store malicious HTML and JavaScript in the database. When an unsuspecting user accesses the compromised content, the malicious code is executed in their browser. This could result in unauthorized actions such as account hijacking or the execution of arbitrary code, posing serious security risks for both users and the integrity of the Tactical RMM platform.

Affected Version(s)

Tactical RMM 0 <= 1.6.2

References

https://github.com/amidaware/tacticalrmm-web/commit/ba536...
https://github.com/Kuri119/Stored-XSS-In-Tactical-RMM-1.5...

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.