CVE-2024-50633Public exploitNetwork attack vector

User information disclosure via principal identifier lookup

Published Jan 16, 2025 · Updated Feb 18, 2025

Broken object authorization in CERN Indico 2.2 through 3.3.5 allows remote attackers to read user details via /api/principals. The endpoint accepts requested User identifiers and returns associated basic profile details without restricting lookup to privileged roles. CERN disputes the vulnerability because typical instances intentionally let users find other accounts by name or email, so the reported consequence is limited to those exposed profile fields.

CVSS severity0.0
None
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Broken object authorization in CERN Indico 2.2 through 3.3.5 allows remote attackers to read user details via /api/principals. The endpoint accepts requested User identifiers and returns associated basic profile details without restricting lookup to privileged roles. CERN disputes the vulnerability because typical instances intentionally let users find other accounts by name or email, so the reported consequence is limited to those exposed profile fields.

The record

CVE
CVE-2024-50633
Published
Jan 16, 2025
Updated
Feb 18, 2025
Vendor
CERN
Product
Indico
Classifications
CWE-201, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 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=2.2 <=3.3.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CERN · Indicoversion=2.2 <=3.3.5

Published CVSS scores

0.0MITRE CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-201Insertion of Sensitive Information Into Sent Data
T1087Account Discovery

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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