CVE-2026-102126

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.

Score

CVSS 3.1 8.1 High

Status

Analyzed - 9119a7d8-5eab-497f-8521-727c672e3725

Published

2026-09-30

Last modified

2026-10-07

Weaknesses

CWE-79

Affected products

• Kiteworks (Accellion)
• Core (Kiteworks)

References

• 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