CVE-2023-22903Public exploitNetwork attack vector

User information disclosure via unauthenticated users endpoint

Published Jan 10, 2023 · Updated Apr 7, 2025

Improper access control in LibrePhotos 2022w19 through 2022w50 allows remote attackers to read user data through its REST API. The UserViewSet list action in api/views/user.py assigns AllowAny to GET requests and returns serialized user records without checking authorization. An unauthenticated GET request to /api/users/?format=json exposes full names, email addresses, photo counts, Nextcloud configuration, and other account data.

CVSS severity9.8
Critical
EPSS probability0.72%
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 LibrePhotos 2022w19 through 2022w50 allows remote attackers to read user data through its REST API. The UserViewSet list action in api/views/user.py assigns AllowAny to GET requests and returns serialized user records without checking authorization. An unauthenticated GET request to /api/users/?format=json exposes full names, email addresses, photo counts, Nextcloud configuration, and other account data.

The record

CVE
CVE-2023-22903
Published
Jan 10, 2023
Updated
Apr 7, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 2025Record 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1190Exploit Public-Facing Application

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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