CVE-2026-1695 XSS vulnerability upon unsuccessful authentication
Remote attackers can execute scripts via XSS on OAuth error pages, potentially compromising user sessions in PcVue SCADA systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-1695?
CVE-2026-1695 is a medium-severity cross-site scripting vulnerability in arcinfo PcVue, published on 26 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An XSS vulnerability affects the OAuth web services used by the WebVue, WebScheduler, TouchVue and SnapVue features of PcVue in version 12.0.0 through 16.3.3 included. It might allow a remote attacker to trick a legitimate user into loading content from another site upon unsuccessful user authentication on an unknown application (unknown client_id).
This vulnerability only affects the error page of the OAuth server.
Weakness: CWE-79
Which versions are affected by CVE-2026-1695?
It affects 1 product.
Products include Arcinfo Pcvue.
How do I fix CVE-2026-1695?
No fix has been published for CVE-2026-1695 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-1695 being exploited?
There is no known exploitation of CVE-2026-1695 in the wild and no public exploit code.
Other vulnerabilities in arcinfo PcVue
- CVE-2020-26867 ARC Informatique PcVue Deserialization of Untrusted Data
- CVE-2026-14868 Weak encryption mechanism for User directory
- CVE-2020-26868 ARC Informatique PcVue Access to Critical Private Variable via Public Method
- CVE-2020-26869 ARC Informatique PcVue Exposure of Sensitive Information to an Unauthorized Actor
- CVE-2026-14867 Insecure password storage in User directory
Sources
Also known as GHSA-7693-hmcm-7whx.