CVE-2022-3065Public exploitNetwork attack vector

Service interruption via unrestricted proxy requests

Published Sep 2, 2022 · Updated Aug 3, 2024

Improper access control in draw.io before 20.2.8 allows remote attackers to interrupt service through unauthenticated proxy requests. ProxyServlet accepts a user-supplied URL without an enablement gate or port allowlist, forwards the request, and returns errors that reveal request outcomes. No account or user interaction is required; the demonstrated consequence is limited to service availability.

CVSS severity7.5
High
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in draw.io before 20.2.8 allows remote attackers to interrupt service through unauthenticated proxy requests. ProxyServlet accepts a user-supplied URL without an enablement gate or port allowlist, forwards the request, and returns errors that reveal request outcomes. No account or user interaction is required; the demonstrated consequence is limited to service availability.

The record

CVE
CVE-2022-3065
Published
Sep 2, 2022
Updated
Aug 3, 2024
Vendor
draw.io Ltd
Product
draw.io
Classifications
CWE-284, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 2, 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

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.3huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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-284Improper Access Control
T1499Endpoint Denial of Service

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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