CVE-2026-12619Network attack vector

Authenticated XSS via unsanitized POST parameters

Published Jun 19, 2026 · Updated Jun 19, 2026

Cross-site scripting in Microchip GridTime 3000 firmware 1.0r0.03 through 1.1r0.0 allows remote authenticated users to inject script. Several POST API endpoints fail to neutralize request parameters, and forged cross-site requests can place an XSS payload into their processing. Valid credentials and passive browser interaction are required; execution can alter data in the device's web-management context.

CVSS severityUnavailable
Unscored
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-site scripting in Microchip GridTime 3000 firmware 1.0r0.03 through 1.1r0.0 allows remote authenticated users to inject script. Several POST API endpoints fail to neutralize request parameters, and forged cross-site requests can place an XSS payload into their processing. Valid credentials and passive browser interaction are required; execution can alter data in the device's web-management context.

The record

CVE
CVE-2026-12619
Published
Jun 19, 2026
Updated
Jun 19, 2026
Vendor
Microchip Technology
Product
GridTime 3000 GNSS Time Server
Classifications
CWE-79, CAPEC-63, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0r0.03 <=1.1r0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microchip Technology · GridTime 3000 GNSS Time Serverversion=1.0r0.03 <=1.1r0.0

Published CVSS scores

5.1Microchip TechnologyCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:A

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
T1203Exploitation for Client Execution

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo