# CVE-2026-1695: ARC Informatique PcVue XSS in OAuth web services

Source: https://junglewise.ai/threats/cve-2026-1695-arc-informatique-pcvue-xss-in-oauth-web-services  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-02-26. Updated: 2026-07-09  
License: CC BY 4.0 with a link back

CVE-2026-1695 · Severity: medium · CVSS 6.1 · Published 2026-02-26

A security vulnerability exists in the PcVue industrial monitoring platform, specifically affecting its web-based interfaces and mobile applications. An attacker could trick a legitimate user into interacting with a malicious link that loads unauthorized content through the platform's login error pages. This could lead to unauthorized actions being performed in the user's session or the theft of sensitive information, potentially compromising the monitoring and control of industrial systems.

Technologies: [ARC Informatique PcVue](https://junglewise.ai/threats/technologies/pcvue). Vendors: [ARC Informatique](https://junglewise.ai/threats/vendors/arc-informatique).

## Quick answers

**Is CVE-2026-1695 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-1695 being exploited in the wild.

**How severe is CVE-2026-1695?** Medium severity, with a CVSS score of 6.1, published 26 February 2026.

**Which products and versions are affected?** ARC Informatique PcVue 12.0.0 through 16.3.3.

**Is there a fix for CVE-2026-1695?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-1695 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-1695?** Check whether you run ARC Informatique PcVue at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A reflected Cross-Site Scripting (XSS) vulnerability exists in the OAuth server component of PcVue. The flaw is located within the error page generation logic of the OAuth web services. An unauthenticated remote attacker can exploit this by crafting a malicious URL (e.g., using an unknown client_id) that, when visited by a legitimate user, executes arbitrary script in the context of the user's browser session. This affects several features including WebVue, WebScheduler, TouchVue, and SnapVue. The vulnerability is addressed in version 16.3.4 and other subsequent maintenance releases.

## Affected products

- ARC Informatique PcVue 12.0.0 through 16.3.3

## Timeline

- 2026-02-26: disclosed
- 2026-02-26: advisory

## References

- [https://www.pcvue.com/security/](https://www.pcvue.com/security/)

## Related threats

- [ARC Informatique PcVue Inadequate Encryption Strength in User Directory](https://junglewise.ai/threats/cve-2026-14868-arc-informatique-pcvue-inadequate-encryption-strength-in-user)
- [ARC Informatique PcVue plaintext storage of credentials in User directory](https://junglewise.ai/threats/cve-2026-14867-arc-informatique-pcvue-plaintext-storage-of-credentials-in-user)
- [ARC Informatique PcVue HTTP Host header attack in WebClient and WebScheduler](https://junglewise.ai/threats/cve-2026-1698-arc-informatique-pcvue-http-host-header-attack-in-webclient-and)
- [ARC Informatique PcVue missing cookie attributes in WebClient](https://junglewise.ai/threats/cve-2026-1697-arc-informatique-pcvue-missing-cookie-attributes-in-webclient)
- [ARC Informatique PcVue Improper HTTP Security Headers](https://junglewise.ai/threats/cve-2026-1696-arc-informatique-pcvue-improper-http-security-headers)