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Vulnerabilities

CVE-2026-1698

Medium
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 m
CWE-644 — Weakness Type
Published: Feb 26, 2026  ·  Modified: Mar 5, 2026  ·  Source: NVD
🔗 NVD Official
📄 Description (English)

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.

🤖 AI Executive Summary

A HTTP Host header injection vulnerability in PcVue versions 15.0.0-16.3.3 affects WebClient and WebScheduler authentication endpoints, allowing remote attackers to manipulate server-side behavior through crafted payloads. The vulnerability specifically impacts /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback, and /Authentication/Logout endpoints.

📄 Description (Arabic)

تؤثر هذه الثغرة على تطبيقات PcVue WebClient و WebScheduler في الإصدارات 15.0.0 حتى 16.3.3، حيث يمكن للمهاجمين البعيدين حقن حمولات ضارة عبر رأس HTTP Host. تقتصر الثغرة على ثلاث نقاط نهاية للمصادقة الخارجية واستدعاء رمز التفويض وتسجيل الخروج.

🤖 ملخص تنفيذي (AI)

ثغرة حقن رأس HTTP في PcVue الإصدارات 15.0.0-16.3.3 تؤثر على تطبيقات WebClient و WebScheduler في نقاط المصادقة، مما يسمح للمهاجمين بمعالجة السلوك من جانب الخادم. تؤثر الثغرة بشكل خاص على نقاط النهاية /Authentication/ExternalLogin و /Authentication/AuthorizationCodeCallback و /Authentication/Logout.

🤖 AI Intelligence Analysis Analyzed: May 30, 2026 07:45
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
energy government healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.0
/ 10.0
🔧 Remediation Steps (English)
Update PcVue to version 16.3.4 or later immediately. Implement input validation and sanitization for HTTP Host headers. Deploy Web Application Firewall (WAF) rules to detect and block Host header injection attempts. Restrict access to affected authentication endpoints using network segmentation and IP whitelisting where possible.
🔧 خطوات المعالجة (العربية)
قم بتحديث PcVue إلى الإصدار 16.3.4 أو أحدث فوراً. قم بتنفيذ التحقق من صحة المدخلات وتنظيفها لرؤوس HTTP Host. نشر قواعد جدار حماية تطبيقات الويب (WAF) للكشف عن محاولات حقن Host header وحجبها. تقييد الوصول إلى نقاط نهاية المصادقة المتأثرة باستخدام تقسيم الشبكة والقوائم البيضاء للعناوين.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.9.2.1 A.9.4.3
🔵 SAMA CSF
AC-2 AC-3 AC-6
🟡 ISO 27001:2022
A.9.2.1 A.9.4.3 A.14.2.1
📋 Quick Facts
Severity Medium
CVSS Score
CWECWE-644
Exploit No
Patch ✗ No
Published 2026-02-26
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
6.0
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
CWE-644
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