CVE-2023-52077Network attack vector

Administrative API access via unchecked app-token privileges

Published Dec 27, 2023 · Updated Aug 2, 2024

Incorrect authorization in nexryai Concorde before 12.23Q4.5 allows remote authenticated users to invoke administrative APIs. The API dispatcher in packages/backend/src/server/api/call.ts fails to reject app tokens when an endpoint requires administrator or moderator privileges. An administrator or moderator must issue or approve the token, after which a malicious app can alter server settings and read object-storage or mail credentials.

CVSS severity9.0
Critical
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in nexryai Concorde before 12.23Q4.5 allows remote authenticated users to invoke administrative APIs. The API dispatcher in packages/backend/src/server/api/call.ts fails to reject app tokens when an endpoint requires administrator or moderator privileges. An administrator or moderator must issue or approve the token, after which a malicious app can alter server settings and read object-storage or mail credentials.

The record

CVE
CVE-2023-52077
Published
Dec 27, 2023
Updated
Aug 2, 2024
Vendor
nexryai
Product
Concorde
Classifications
CWE-863, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=< 12.23Q4.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

nexryai · Concordeversion=< 12.23Q4.5

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.0GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

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-863Incorrect Authorization
T1190Exploit Public-Facing Application

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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