November 14, 2026

CVE Watchtower

CVE-2026-60043MB connect line mbCONNECT24 Cross-site Scripting (XSS)

NVD

Vulnerability Summary

An unauthenticated remote attacker can perform a XSS attack on a logged in backend user allowing for execution of multiple critical system actions. This could allow an attacker to shutdown the server or restore an uploaded backup. This can result in a loss of integrity and availability.
Severity Level
MEDIUM(6.4)
Published Date
Nov 10, 2026
Last Modified
Nov 12, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.38%Probability
Root Weakness (CWE)
CWE-79: Cross-site Scripting (XSS) ↗
The software does not neutralize user-controllable input before it is placed in output that is used as a web page.
CVSS v4.0 Base Metrics — Score 6.4 (MEDIUM)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionPassive
Confidentiality (Vulnerable System)None
Integrity (Vulnerable System)None
Availability (Vulnerable System)None
Confidentiality (Subsequent System)None
Integrity (Subsequent System)High
Availability (Subsequent System)High
Show CVSS v3.x metrics (score 9.3)
CVSS v3.1 Base Metrics — Score 9.3 (CRITICAL)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • MB connect line mbCONNECT24 >= 2.0.0 and < 2.21.0
  • MB connect line mymbCONNECT24 >= 2.0.0 and < 2.21.0
  • Helmholz myREX24V2 >= 2.0.0 and < 2.21.0
  • Helmholz myREX24V2.virtual >= 2.0.0 and < 2.21.0
Patched Versions
  • MB connect line mbCONNECT24 2.21.0
  • MB connect line mymbCONNECT24 2.21.0
  • Helmholz myREX24V2 2.21.0
  • Helmholz myREX24V2.virtual 2.21.0

What to do

Fix it during your normal patch cycle. No exploitation is confirmed yet.

  1. Check whether you run MB connect line mbCONNECT24 and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Nov 10, 2026Published
  • Nov 12, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 01:09 UTC