CVE-2026-1698

Severity CVSS v4.0:

MEDIUM

Type:

Unavailable / Other

Publication date:

26/02/2026

Last modified:

27/02/2026

Description

A HTTP Host header attack vulnerability affects WebClient and the WebScheduler web apps of PcVue in version 15.0.0 through 16.3.3 included, allowing a remote attacker to inject harmful payloads that manipulate server-side behavior.<br /> <br /> This vulnerability only affects the endpoints /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback and /Authentication/Logout<br /> of the WebClient and WebScheduler web apps.

Impact

Vector 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/RE:M/U:Clear CVSS v4.0 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/RE:M/U:Clear

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): Passsive
Confidentiality (VC): Low
Integrity (VI): None
Availability (VA): None
Confidentiality (SC): Low
Integrity (SI): Low
Availability (SA): None
Automatable (AU): Yes
Recovery (R): User
Vulnerability Response Effort (RE): Moderate
Provider Urgency (U): Clear

Base Score 4.0

5.30

Severity 4.0

MEDIUM

References to Advisories, Solutions, and Tools

https://www.pcvue.com/security/#SB2026-2