CVE-2026-1698
HTTP Host Header Injection in PcVue WebClient and WebScheduler
Publication date: 2026-02-26
Last updated on: 2026-03-12
Assigner: arcinfo
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| arcinformatique | pcvue | From 15.0.0 (inc) to 15.2.13 (inc) |
| arcinformatique | pcvue | From 16.0.0 (inc) to 16.3.4 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-644 | The product does not neutralize or incorrectly neutralizes web scripting syntax in HTTP headers that can be used by web browser components that can process raw headers, such as Flash. |
Attack-Flow Graph
AI Powered Q&A
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
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What immediate steps should I take to mitigate this vulnerability?
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How can this vulnerability be detected on my network or system? Can you suggest some commands?
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Can you explain this vulnerability to me?
This vulnerability is a HTTP Host header attack that affects the WebClient and WebScheduler web applications of PcVue versions 15.0.0 through 16.3.3. It allows a remote attacker to inject harmful payloads that can manipulate the server-side behavior of these applications.
The attack specifically targets the endpoints /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback, and /Authentication/Logout.
How can this vulnerability impact me? :
This vulnerability can allow a remote attacker to manipulate server-side behavior by injecting harmful payloads through the HTTP Host header. This could potentially lead to unauthorized actions or disruptions in the affected web applications.