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CVE-2021-22291

EIBPORT Reflected XSS

HIGH
8
CVSS Score
Published: October 7, 2025 at 01:29 PM UTC
Updated: June 17, 2026 at 03:36 AM UTC
2 products affected across 1 vendorEIBPORT V3 KNX GSMEIBPORT V3 KNX

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Severity
HIGH8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in ABB EIBPORT V3 KNX, ABB EIBPORT V3 KNX GSM.This issue affects EIBPORT V3 KNX: before 3.9.2; EIBPORT V3 KNX GSM: before 3.9.2.

Affected

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

EIBPORT V3 KNX· ABB
60%
v < 3.9.2
Affected range stops below 3.9.2, so it looks safe — our inference, not a vendor statement
EIBPORT V3 KNX GSM· ABB
60%
v < 3.9.2
Affected range stops below 3.9.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://search.abb.com/library/Download.aspx?DocumentID=9AKK108471A7808&LanguageCode=en&DocumentPartId=pdf&Action=Launch

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

8HIGHABB
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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