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CVE-2023-1841

Honeywell MPA2 Web Application XSS vulnerability

MEDIUM
4.8
CVSS Score
Published: February 29, 2024 at 05:09 AM UTC
Updated: June 17, 2026 at 05:28 AM UTC
2 products affected across 1 vendorMPA2 FirmwareMPA2

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Severity
MEDIUM4.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Honeywell MPA2 Access Panel (Web server modules) allows XSS Using Invalid Characters.This issue affects MPA2 Access Panel all version prior to R1.00.08.05. Honeywell released firmware update package MPA2 firmware R1.00.08.05 which addresses this vulnerability. This version and all later versions correct the reported vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MPA2 Firmware· Honeywell
95%
v < R1.00.08.05
Affected range stops below R1.00.08.05, so it looks safe — our inference, not a vendor statement
honeywell-mpa2 (same device)
MPA2· Honeywell
60%
v < R1.00.08.05
Affected range stops below R1.00.08.05, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: [email protected]
https://buildings.honeywell.com/us/en/brands/our-brands/security/support-and-resources/product-resources/eol-and-security-notices
Vendor Advisory
Source: [email protected]
https://https://www.honeywell.com/us/en/product-security

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.8MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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