CVE-2023-2247Network attack vector

Secret disclosure via variable preview unmasking

Published May 2, 2023 · Updated Dec 3, 2024

Sensitive information disclosure in affected Octopus Server releases allows remote attackers to read stored variable secrets through preview. The variable preview function renders a masked sensitive variable in clear text, bypassing the normal write-only treatment of saved secrets. Octopus Deploy has not disclosed the request, permissions, or configuration needed to reach preview; the consequence is limited to secret disclosure.

CVSS severity5.3
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive information disclosure in affected Octopus Server releases allows remote attackers to read stored variable secrets through preview. The variable preview function renders a masked sensitive variable in clear text, bypassing the normal write-only treatment of saved secrets. Octopus Deploy has not disclosed the request, permissions, or configuration needed to reach preview; the consequence is limited to secret disclosure.

The record

CVE
CVE-2023-2247
Published
May 2, 2023
Updated
Dec 3, 2024
Vendor
Octopus Deploy
Product
Octopus Server
Classifications
T1555
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 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=2018.3.0 <unspecified
  2. Affected versionversion=unspecified <2022.3.10929
  3. Affected versionversion=unspecified <2022.4.791
  4. Affected versionversion=unspecified <2022.4.8319

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Octopus Deploy · Octopus Serverversion=2018.3.0 <unspecified; version=unspecified <2022.3.10929; version=unspecified <2022.4.791; version=unspecified <2022.4.8319

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1555Credentials from Password Stores

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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