HIGH

CVE-2026-102126

CVSS v3

8.1

HIGH

EPSS Score

0.4 %

exploit probability, as of 2026-10-01

CISA KEV

known exploited

Exploitation

—

SSVC status

Description

A stored cross-site scripting (XSS) weakness in Kiteworks Core could allow an administrator holding only a single, narrowly scoped delegated permission to store crafted content that later executes arbitrary JavaScript in the authenticated session of a System Administrator who views the affected page. This could have permitted the lower-privileged administrator to escalate to full administrative control of the tenant, including the creation of a new administrative account.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
Published: 2026-09-30
Last Modified: 2026-10-01

Frequently asked questions

What is CVE-2026-102126?

Is CVE-2026-102126 actively exploited?

Active exploitation of CVE-2026-102126 has not been confirmed. Its EPSS score was 0.4% on 2026-10-01, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-102126?

CVE-2026-102126 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N.

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