CVE-2025-4819Public exploitNetwork attack vector

Authenticated session termination via unchecked target privilege

Published May 17, 2025 · Updated May 19, 2025

Improper authorization in RuoYi 4.8.0 allows remote authenticated users to force other users offline through a crafted session ID. SysUserOnlineController.batchForceLogout accepts arbitrary active-session IDs and deletes each referenced OnlineSession without comparing the target user's privilege with the caller's. The caller needs an online-session logout permission, and exploitation terminates another user's active session without changing the account.

CVSS severity2.3
Low
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in RuoYi 4.8.0 allows remote authenticated users to force other users offline through a crafted session ID. SysUserOnlineController.batchForceLogout accepts arbitrary active-session IDs and deletes each referenced OnlineSession without comparing the target user's privilege with the caller's. The caller needs an online-session logout permission, and exploitation terminates another user's active session without changing the account.

The record

CVE
CVE-2025-4819
Published
May 17, 2025
Updated
May 19, 2025
Vendor
yangzongzhuan
Product
RuoYi
Classifications
CWE-285, CWE-266, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 2025CVE publishedPublication date reported by the CVE source.
  2. May 19, 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=4.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

yangzongzhuan · RuoYiversion=4.8.0

Published CVSS scores

3.1VulDBCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
2.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
2.1VulDBAV:N/AC:H/Au:S/C:N/I:N/A:P
3.1VulDBCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

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-285Improper Authorization
CWE-266Incorrect Privilege Assignment
T1531Account Access Removal

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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