PT-2026-22130 · Unknown · Pcvue Webclient+1

Published 2026-02-26 · Updated 2026-03-12 · CVE-2026-1698

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions PcVue WebClient and WebScheduler versions 15.0.0 through 16.3.3

Description A HTTP Host header attack affects the WebClient and WebScheduler web apps, potentially allowing a remote attacker to inject harmful payloads and manipulate server-side behavior. The issue impacts the following API endpoints: /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback, and /Authentication/Logout. The attack exploits the HTTP Host header to inject malicious content.

Recommendations Update to a version later than 16.3.3.

Fix

Weakness Enumeration

CWE-644

Related Identifiers

CVE-2026-1698

Affected Products

Pcvue Webclient

Pcvue Webscheduler

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-1698 · Security Note
• https://osv.dev/vulnerability/CVE-2026-1698 · Vendor Advisory
• https://pcvue.com/security/#SB2026-2 · Vendor Advisory
• https://twitter.com/CVEnew/status/2027004187502956884 · Twitter Post
• https://t.me/cveNotify/155288 · Telegram Post
• https://twitter.com/dailycve/status/2032176350929326158 · Twitter Post
• https://t.me/CVEtracker/45838 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2027034414476075191 · Twitter Post