CVE-2023-47117Public exploitNetwork attack vector

Password-hash disclosure via unrestricted ORM filter traversal

Published Nov 13, 2023 · Updated Jan 8, 2025

ORM-based information disclosure in HumanSignal Label Studio before 1.9.2post0 allows remote authenticated users to read account password hashes. ViewSetSerializer accepts attacker-controlled filter paths from PATCH requests, and TaskQuerySet applies them as Django ORM lookups without restricting relationship traversal. An account, project, task, saved view, and session cookie are required; repeated regex probes disclose hashes character by character, and releases through 1.8.1 also permit session-token forgery when chained with the hard-coded secret key.

CVSS severity7.5
High
EPSS probability4.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

ORM-based information disclosure in HumanSignal Label Studio before 1.9.2post0 allows remote authenticated users to read account password hashes. ViewSetSerializer accepts attacker-controlled filter paths from PATCH requests, and TaskQuerySet applies them as Django ORM lookups without restricting relationship traversal. An account, project, task, saved view, and session cookie are required; repeated regex probes disclose hashes character by character, and releases through 1.8.1 also permit session-token forgery when chained with the hard-coded secret key.

The record

CVE
CVE-2023-47117
Published
Nov 13, 2023
Updated
Jan 8, 2025
Vendor
HumanSignal
Product
Label Studio
Classifications
CWE-202, CWE-200, T1555
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 8, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.9.2post0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HumanSignal · Label Studioversion=< 1.9.2post0

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 exploitPublished

Weakness, pattern, technique

CWE-202Exposure of Sensitive Information Through Data Queries
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1555Credentials from Password Stores

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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