CVE-2026-66919 Stored DOM-Based Cross-Site Scripting in Node Modal Headers
Attackers can inject malicious scripts via graph data, leading to session hijacking or data manipulation when users view node modals.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-66919?
CVE-2026-66919 is a medium-severity cross-site scripting vulnerability in Pivotick, published on 28 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-66919?
How do I fix CVE-2026-66919?
No fix has been published for CVE-2026-66919 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-66919 being exploited?
There is no known exploitation of CVE-2026-66919 in the wild and no public exploit code.
Sources
Also known as GHSA-7473-f8wh-xmwc.