CVE-2026-72751

What it is

CTI-Transmute is affected by a stored cross-site scripting (XSS) vulnerability in the conversion graph used to visualise converted MISP and STIX content. Attacker-controlled values originating from converted CTI data were passed to multiple HTML-parsing sinks in the graph user interface without sufficient neutralisation. In particular, node labels, node sublabels, edge labels, node properties, edge properties, and node types could contain crafted HTML or JavaScript content. The Pivotick graph library renders some of these values through HTML-parsing operations. Consequently, a malicious value such as an HTML element containing an event handler could be interpreted as markup rather than displayed as plain text. The first remediation explicitly notes that Pivotick rendered node and edge labels as HTML and therefore introduced escaping before data was handed to the graph renderer. A separate vulnerable sink was present in the Open raw JSON functionality. The raw object associated with a graph node was inserted into a new document using document.write() and an interpolated HTML string. Crafted JSON content could therefore break out of the intended <pre> element and inject executable markup. The fix replaced this construction with DOM APIs and assigns the JSON using textContent. The initial correction did not cover all Pivotick rendering paths. A subsequent patch addressed additional XSS vectors in the graph properties panel. Values derived from the original CTI object—including property names, property values, hash algorithm names, child attributes, edge properties, and STIX object types—could still reach Pivotick's HTML resolver. According to the patch, Pivotick's tryResolveHTMLElement processes string values using template.innerHTML, allowing malicious markup to execute when a graph node is hovered over or selected. The complete remediation therefore: * HTML-escapes node labels, node sublabels, and edge labels before they are passed to Pivotick. * Restricts graph node type values to a safe identifier character set. * Wraps node and edge property values in DOM elements populated through textContent, preventing Pivotick from treating attacker-controlled strings as HTML. * Replaces the raw-JSON popup's interpolated document.write() with DOM construction and textContent.

At a glance

Exploitability

Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-08-10 14:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-24 15:10 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.5% in the next 30 days (EPSS).
• Severity: 5.1 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2026-08-10 14:17 UTC

Last modified

2026-10-24 15:10 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-79 · Cross-site scripting

Record status

Deferred

Attack profile CVSS 4.0 · 5.1

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

None

User interaction

Active

Confidentiality

Low

Integrity

Low

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

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