---
id: CVE-2026-1698
title: >-
  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.


  This…
summary: >-
  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.


  This…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-644
vendor: arcinfo
product: pcvue
affected:
  - 'pcvue >= 15.0.0, <= 15.2.13'
  - 'pcvue >= 16.0.0, < 16.3.4'
patched:
  - pcvue 16.3.4
published: '2026-02-26'
updated: '2026-07-09'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-1698'
references:
  - url: 'https://www.pcvue.com/security/#SB2026-2'
    label: 87c8e6ad-f0f5-4ca8-89e2-89f26d6ed932
tags:
  - nvd
epss: 0.00207
epssPercentile: 0.11064
ingestedAt: '2026-07-10T01:55:22.944Z'
---

## Overview

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.

This vulnerability only affects the endpoints /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback and /Authentication/Logout
of the WebClient and WebScheduler web apps.

## Affected

- `pcvue >= 15.0.0, <= 15.2.13`
- `pcvue >= 16.0.0, < 16.3.4`

## Remediation

Upgrade past the affected range:

- `pcvue 16.3.4`