CVE-2020-6752Network attack vector

Cross-group data access via owner context

Published Jun 17, 2020 · Updated Aug 4, 2024

Improper authorization in OMERO.server before 5.6.1 allows remote authenticated group owners to access members' data in other groups. The server applies a group owner's authorization context when evaluating data belonging to members in separate groups, bypassing group boundaries. Exploitation requires group-owner privileges and exposes data associated with that group's members outside the managed group.

CVSS severity3.8
Low
EPSS probability0.55%
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 OMERO.server before 5.6.1 allows remote authenticated group owners to access members' data in other groups. The server applies a group owner's authorization context when evaluating data belonging to members in separate groups, bypassing group boundaries. Exploitation requires group-owner privileges and exposes data associated with that group's members outside the managed group.

The record

CVE
CVE-2020-6752
Published
Jun 17, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-863, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 17, 2020CVE 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NVDAV:N/AC:L/Au:S/C:P/I:P/A:N
3.8NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/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.

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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-863Incorrect Authorization
T1213Data from Information Repositories

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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