Honeywell MPA2 Web Application XSS vulnerability
Priority LOW 37CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00372 31st percentileScored 2026-11-07
Fix Fixed MPA2 Access Panel (Honeywell): R1.00.08.05
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Honeywell | MPA2 Access Panel | before R1.00.08.05 | R1.00.08.05 | Patch available | CNA |
- MPA2 Access Panel VendorHoneywell Affected before R1.00.08.05 Fixed in R1.00.08.05 Patch available CNA
Remediation
- Fix · CNA MPA2 Access Panel (Honeywell) Fixed in R1.00.08.05
Timeline
- 2026-10-02 Threatist record created from CVE-2023-1841
- 2026-10-03 Alias added: GHSA-556g-gfc7-pf9v
References
Sources
- CVE-2023-1841 · CVE Program
- CVE-2023-1841 · NVD
- FIRST EPSS
- GHSA-556g-gfc7-pf9v · GitHub Advisory Database · CC BY 4.0
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