CVE-2020-4079Network attack vector

Authenticated data disclosure via unfiltered Excel export

Published Jan 12, 2021 · Updated Aug 4, 2024

Improper authorization in Combodo iTop before 2.7.2 allows remote authenticated users to read out-of-scope data via Excel export. The portal Excel-export AJAX endpoint accepts a direct request and builds the export without applying the requesting user's portal scope filter. A valid portal account and direct endpoint access are required; the result exposes otherwise unauthorized records without modifying them.

CVSS severity7.7
High
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Combodo iTop before 2.7.2 allows remote authenticated users to read out-of-scope data via Excel export. The portal Excel-export AJAX endpoint accepts a direct request and builds the export without applying the requesting user's portal scope filter. A valid portal account and direct endpoint access are required; the result exposes otherwise unauthorized records without modifying them.

The record

CVE
CVE-2020-4079
Published
Jan 12, 2021
Updated
Aug 4, 2024
Vendor
Combodo
Product
iTop
Classifications
CWE-200, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=< 2.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Combodo · iTopversion=< 2.7.2

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
7.7GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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