CVE-2026-82773 PUBLISHED

Assigner: jpcert
Reserved: 31.08.2026 Published: 14.09.2026 Updated: 14.09.2026

Cross-site scripting vulnerability exists in CONPROSYS M2M Gateway Series and CONPROSYS M2M Controller Series. 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:N/UI:R/S:C/C:L/I:L/A:N
CVSS Score: 6.1

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	Low
User Interaction	Required	Availability Impact	None

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	Low
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

Product Status

Vendor	Contec Co., Ltd.
Product	M2M Gateway Integrated Type CPS-MG341*
Versions	Default: unaffected affected from 0 to 4.1.0 (excl.)

Vendor	Contec Co., Ltd.
Product	M2M Gateway Configurable type CPS-MGS341*
Versions	Default: unaffected affected from 0 to 4.1.0 (excl.)

Vendor	Contec Co., Ltd.
Product	M2M Controller Integrated Type CPS-MC341
Versions	Default: unaffected affected from 0 to 4.1.0 (excl.)

Vendor	Contec Co., Ltd.
Product	M2M Controller Configurable type CPS-MCS341*
Versions	Default: unaffected affected from 0 to 4.1.0 (excl.)

CVE-2026-82773 PUBLISHED

Metrics

Product Status

References

Problem Types