What is CVE-2026-12621?

CVE-2026-12621 is a medium-severity vulnerability in Microchip Gridtime 3000, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-06-19.

How severe is CVE-2026-12621?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Microchip Gridtime 3000

CVE-2026-12621

Improper neutralization of input during web page generation XSS vulnerability in the GridTime 3000 (password reset form) allows XSS. This issue affects GridTime 3000: from 1.0r0.03 before 1.2r0.0.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (3.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Microchip Gridtime 3000 — versions 1.0r0.03
Microchip Gridtime_3000
Microchip Gridtime_3000_firmware

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-12621?: CVE-2026-12621 is a medium-severity vulnerability in Microchip Gridtime 3000, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-06-19.
How severe is CVE-2026-12621?: Medium severity. CVSS v3 base score is 5.4 out of 10.