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Vulnerability record · CVE-2026-102126 · published 30 September 2026

CVE-2026-102126: Cross-site scripting vulnerability

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.

8.1 CVSS 3.1 High CWE-79 · Cross-site scripting Awaiting Analysis
8.1CVSS 3.1 base score
-EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
1 Oct 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N

References

LinkTags
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-ccfx-6hq4-fx4g
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json

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Source: NIST National Vulnerability Database (record CVE-2026-102126), CISA KEV, FIRST EPSS. This page is refreshed as NVD updates the record.