Kiteworks Core Stored Cross-site Scripting (XSS) (CVE-2026-102126) | HOL Guard CVE

High · CVSS 8.1CVE-2026-102126

Kiteworks Core Stored Cross-site Scripting (XSS)

Answer in brief

CVE-2026-102126 records a High severity (CVSS 8.1) vulnerability in Kiteworks Core Stored Cross-site Scripting (XSS). The current sources do not mark it as known exploited. The current feed maps Kiteworks/Core (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 30, 2026Updated Sep 30, 2026Source checked Sep 30, 2026First seen by HOL Sep 30, 2026Material review Sep 30, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Kiteworks/Core (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Kiteworks/Coregeneric	>=0 <9.5.1	9.5.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for Kiteworks/Core.
Review the reported fix. Update Kiteworks/Core to 9.5.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 30, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.