CVE-2025-4000Public exploitNetwork attack vector

Authenticated script injection via unneutralized Name parameter

Published Apr 28, 2025 · Updated Apr 28, 2025

Cross-site scripting in ssoproxy.jsp in Seeyon Zhiyuan OA Web Application System 8.1 SP2 allows remote authenticated users to inject script. The JSP places the user-controlled Name parameter into generated page output without neutralizing browser-active content. Low-privilege access and victim interaction are required, enabling script execution in the victim's browser and modification of displayed content.

CVSS severity5.1
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in ssoproxy.jsp in Seeyon Zhiyuan OA Web Application System 8.1 SP2 allows remote authenticated users to inject script. The JSP places the user-controlled Name parameter into generated page output without neutralizing browser-active content. Low-privilege access and victim interaction are required, enabling script execution in the victim's browser and modification of displayed content.

The record

CVE
CVE-2025-4000
Published
Apr 28, 2025
Updated
Apr 28, 2025
Vendor
Beijing Seeyon Internet Software Corp.
Product
Zhiyuan OA Web Application System
Classifications
CWE-94, CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 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?

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

  1. Affected versionversion=8.1 SP2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Beijing Seeyon Internet Software Corp. · Zhiyuan OA Web Application Systemversion=8.1 SP2

Published CVSS scores

3.5VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.0VulDB CNAAV:N/AC:L/Au:S/C:N/I:P/A:N
5.1VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA: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-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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