CVE-2026-121578

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 62/100
Published: 2026-11-03 Modified: 2026-11-04 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: Low
I: Low
A: None

Description

Tactical RMM contains a stored XSS vulnerability caused by improperly validated input or encode output for various fields, enabling HTML/JavaScript to be stored in the tools database, which is then executed in the browsers of users when they view content containing the infected objects, leading to account takeover or code execution.

Weakness Classification (1)

Affected Software (3)

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.31%
Raw Score 0.003120
Percentile 24.5%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00312
2026-11-13
0.00312
2026-11-12
0.00312
2026-11-10
0.00312
2026-11-09
0.00312
2026-11-08
0.00312
2026-11-07
0.00312
2026-11-06
0.00312
2026-11-05
0.00312
2026-11-04
0.00312

Intelligence Sources

mitre ref →
nvd ref →