CVE-2025-2711Public exploitNetwork attack vector

Browser script execution via unencoded langcode reflection

Published Mar 24, 2025 · Updated Mar 25, 2025

Reflected XSS in systop.jsp in Yonyou UFIDA NC 5.0 allows remote attackers to execute script in a victim's browser via langcode. The page reads langcode from the request and inserts it unencoded into a JavaScript URL and an image source in the returned HTML. Exploitation requires a user to open a crafted URL, after which the script runs in the UFIDA NC origin and can alter browser-visible content.

CVSS severity5.3
Medium
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in systop.jsp in Yonyou UFIDA NC 5.0 allows remote attackers to execute script in a victim's browser via langcode. The page reads langcode from the request and inserts it unencoded into a JavaScript URL and an image source in the returned HTML. Exploitation requires a user to open a crafted URL, after which the script runs in the UFIDA NC origin and can alter browser-visible content.

The record

CVE
CVE-2025-2711
Published
Mar 24, 2025
Updated
Mar 25, 2025
Vendor
Yonyou Network Technology Co., Ltd.
Product
UFIDA NC
Classifications
CWE-79, CWE-94, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 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=5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Yonyou Network Technology Co., Ltd. · UFIDA NCversion=5.0

Published CVSS scores

4.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
5.0VulDB CNAAV:N/AC:L/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
4.3VulDB CNACVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94Code Injection
T1204.001Malicious Link

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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