CVE-2026-1695Network attack vector

User-triggered cross-site scripting via OAuth error page

Published Feb 26, 2026 · Updated Feb 26, 2026

Cross-site scripting in PcVue 12.0.0 through 16.3.3 allows remote attackers to load external content through its OAuth error page. The OAuth service renders an unsuccessful-authentication response for an unknown client_id without neutralizing attacker-controlled input in the page. Exploitation requires a legitimate user to follow a crafted request, and the reported effect is limited to content loaded through the OAuth server's error page.

CVSS severity5.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in PcVue 12.0.0 through 16.3.3 allows remote attackers to load external content through its OAuth error page. The OAuth service renders an unsuccessful-authentication response for an unknown client_id without neutralizing attacker-controlled input in the page. Exploitation requires a legitimate user to follow a crafted request, and the reported effect is limited to content loaded through the OAuth server's error page.

The record

CVE
CVE-2026-1695
Published
Feb 26, 2026
Updated
Feb 26, 2026
Vendor
ARC Informatique
Product
PcVue
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.0.0
  2. Affected versionversion=15.0.0 <=15.2.13
  3. Affected versionversion=16.0.0 <=16.3.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ARC Informatique · PcVueversion=12.0.0; version=15.0.0 <=15.2.13; version=16.0.0 <=16.3.3

Published CVSS scores

5.3ARC InformatiqueCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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