Medium severity · published Sep 14, 2026
CVE-2026-82790
Cross-site scripting vulnerability exists in PC-HELPER Wireless I/O DIO-0404RY-LWF and PC-HELPER Wireless I/O DIO-0404RY-LWF-US
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
Cross-site scripting vulnerability exists in PC-HELPER Wireless I/O DIO-0404RY-LWF and PC-HELPER Wireless I/O DIO-0404RY-LWF-US. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user's web browser.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PW
PC-HELPER Wireless I/O DIO-0404RY-LWF · Contec Co., Ltd.
before 1.01.00 · source: vendor
PW
PC-HELPER Wireless I/O DIO-0404RY-LWF-US · Contec Co., Ltd.
before 1.01.00 · source: vendor
Affected product
PW
PC-HELPER Wireless I/O DIO-0404RY-LWF
Contec Co., Ltd.
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82790
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82790
jvn.jp
https://jvn.jp/en/vu/JVNVU90314828/
www.contec.com
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_ph_26091000_en.pdf
More from PC-HELPER Wireless I/O DIO-0404RY-LWF
4.3
CVE-2026-82764
Cross-site request forgery vulnerability exists in multiple Contec products