Vulnerability · Published Oct 7, 2025 · Assigned by ABB
CVE-2021-22291EIBPORT Reflected XSS
High 8.0
In plain English
A high-severity cross-site scripting in EIBPORT V3 KNX from ABB. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).
Severity (CVSS 3.1)8.0High
Exploit odds (30 days)0.3%top 74.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ABB | EIBPORT V3 KNX | 0 – before 3.9.2 |
| ABB | EIBPORT V3 KNX GSM | 0 – before 3.9.2 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H