CVE-2025-55471Public exploitNetwork attack vector

Cross-account data disclosure via unchecked user ID

Published Nov 26, 2025 · Updated Nov 28, 2025

Incorrect access control in youlai-boot 2.21.1 allows remote authenticated users to read sensitive profile data belonging to other users. SysUserController.getUserForm accepts an arbitrary userId path value and passes it to getUserFormData, which queries and returns that user's details without an authorization check. A crafted request to the user-form endpoint therefore discloses another account's data; the public report demonstrates the flaw with a low-privilege visitor account.

CVSS severity7.5
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect access control in youlai-boot 2.21.1 allows remote authenticated users to read sensitive profile data belonging to other users. SysUserController.getUserForm accepts an arbitrary userId path value and passes it to getUserFormData, which queries and returns that user's details without an authorization check. A crafted request to the user-form endpoint therefore discloses another account's data; the public report demonstrates the flaw with a low-privilege visitor account.

The record

CVE
CVE-2025-55471
Published
Nov 26, 2025
Updated
Nov 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, CWE-862, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 28, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS: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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-862Missing Authorization
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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