CVE-2026-46642Public exploitNetwork attack vector

Cross-site scripting via unsanitized cell label

Published Jun 10, 2026 · Updated Jun 10, 2026

Cross-site scripting in draw.io before 29.7.12 allows remote attackers to execute JavaScript when a user opens a crafted .drawio file. The Text Format panel's Convert to SVG check assigns a raw cell label to a detached element's innerHTML without sanitization, causing an image onerror handler to run when import selects the cell. Exploitation requires user interaction and a deployment without a blocking Content Security Policy; successful code can read or modify data available in the editor's origin.

CVSS severity6.1
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in draw.io before 29.7.12 allows remote attackers to execute JavaScript when a user opens a crafted .drawio file. The Text Format panel's Convert to SVG check assigns a raw cell label to a detached element's innerHTML without sanitization, causing an image onerror handler to run when import selects the cell. Exploitation requires user interaction and a deployment without a blocking Content Security Policy; successful code can read or modify data available in the editor's origin.

The record

CVE
CVE-2026-46642
Published
Jun 10, 2026
Updated
Jun 10, 2026
Vendor
draw.io Ltd
Product
draw.io
Classifications
CWE-79, CWE-83, T1204.002, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 29.7.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

draw.io Ltd · draw.ioversion=< 29.7.12

Published CVSS scores

6.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-83Improper Neutralization of Script in Attributes in a Web Page
T1204.002Malicious File
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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