CVE-2022-3127Network attack vector

Stored XSS via unescaped diagram content

Published Sep 5, 2022 · Updated Aug 3, 2024

Stored cross-site scripting in draw.io before 20.2.8 allows attackers to execute script in a viewer's browser via crafted diagram content. The authoritative 2022 record does not disclose the specific component or operation that fails to neutralize the stored payload. Exploitation requires a victim to open the crafted diagram, after which script can access data in the draw.io origin and alter the current session.

CVSS severity5.4
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in draw.io before 20.2.8 allows attackers to execute script in a viewer's browser via crafted diagram content. The authoritative 2022 record does not disclose the specific component or operation that fails to neutralize the stored payload. Exploitation requires a victim to open the crafted diagram, after which script can access data in the draw.io origin and alter the current session.

The record

CVE
CVE-2022-3127
Published
Sep 5, 2022
Updated
Aug 3, 2024
Vendor
draw.io Ltd
Product
draw.io
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 5, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=unspecified <20.2.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

draw.io Ltd · draw.ioversion=unspecified <20.2.8

Published CVSS scores

5.5[email protected]CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
5.4[email protected]CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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