CVE-2021-31641
CHIYU IoT Cross Site Scripting
Severity Score
6.1
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
4
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An unauthenticated XSS vulnerability exists in several IoT devices from CHIYU Technology, including BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W, Webpass, BF-MINI-W, and SEMAC due to a lack of sanitization when the HTTP 404 message is generated.
Se presenta una vulnerabilidad de tipo XSS no autenticada en varios dispositivos IoT de CHIYU Technology, incluyendo BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W, Webpass, BF-MINI-W, y SEMAC debido a una falta de sanitización cuando es generado el mensaje HTTP 404
CHIYU IoT devices suffer from multiple cross site scripting vulnerabilities. Versions affected include BF-430, BF-431, BF-450M, BF-630, BF631-W, BF830-W, Webpass, BF-MINI-W, and SEMAC.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-04-23 CVE Reserved
- 2021-06-01 CVE Published
- 2021-06-01 First Exploit
- 2024-08-03 CVE Updated
- 2025-02-16 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
References (5)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.chiyu-tech.com/msg/message-Firmware-update-87.html | 2021-06-08 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Chiyu-tech Search vendor "Chiyu-tech" | Bf-430 Firmware Search vendor "Chiyu-tech" for product "Bf-430 Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Bf-430 Search vendor "Chiyu-tech" for product "Bf-430" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Bf-431 Firmware Search vendor "Chiyu-tech" for product "Bf-431 Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Bf-431 Search vendor "Chiyu-tech" for product "Bf-431" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Bf-450m Firmware Search vendor "Chiyu-tech" for product "Bf-450m Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Bf-450m Search vendor "Chiyu-tech" for product "Bf-450m" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Semac S2 Firmware Search vendor "Chiyu-tech" for product "Semac S2 Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Semac S2 Search vendor "Chiyu-tech" for product "Semac S2" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Semac D1 Firmware Search vendor "Chiyu-tech" for product "Semac D1 Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Semac D1 Search vendor "Chiyu-tech" for product "Semac D1" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Semac D2 Firmware Search vendor "Chiyu-tech" for product "Semac D2 Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Semac D2 Search vendor "Chiyu-tech" for product "Semac D2" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Semac D4 Firmware Search vendor "Chiyu-tech" for product "Semac D4 Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Semac D4 Search vendor "Chiyu-tech" for product "Semac D4" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Semac S3v3 Firmware Search vendor "Chiyu-tech" for product "Semac S3v3 Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Semac S3v3 Search vendor "Chiyu-tech" for product "Semac S3v3" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Semac D2 N300 Firmware Search vendor "Chiyu-tech" for product "Semac D2 N300 Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Semac D2 N300 Search vendor "Chiyu-tech" for product "Semac D2 N300" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Semac S1 Osdp Firmware Search vendor "Chiyu-tech" for product "Semac S1 Osdp Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Semac S1 Osdp Search vendor "Chiyu-tech" for product "Semac S1 Osdp" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Bf-630 Firmware Search vendor "Chiyu-tech" for product "Bf-630 Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Bf-630 Search vendor "Chiyu-tech" for product "Bf-630" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Bf-631w Firmware Search vendor "Chiyu-tech" for product "Bf-631w Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Bf-631w Search vendor "Chiyu-tech" for product "Bf-631w" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Bf-830w Firmware Search vendor "Chiyu-tech" for product "Bf-830w Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Bf-830w Search vendor "Chiyu-tech" for product "Bf-830w" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Webpass Firmware Search vendor "Chiyu-tech" for product "Webpass Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Webpass Search vendor "Chiyu-tech" for product "Webpass" | - | - |
Safe
|
| Chiyu-tech Search vendor "Chiyu-tech" | Bfminiw Firmware Search vendor "Chiyu-tech" for product "Bfminiw Firmware" | - | - |
Affected
| in | Chiyu-tech Search vendor "Chiyu-tech" | Bfminiw Search vendor "Chiyu-tech" for product "Bfminiw" | - | - |
Safe
|