CVE-2026-2200Public exploitNetwork attack vector

Stored XSS via unescaped administrator name

Published Feb 9, 2026 · Updated Feb 9, 2026

Stored cross-site scripting in JFinal CMS 5.0.0 allows remote authenticated users to inject script through an administrator name. The /admin/admin/save endpoint stores the name field without neutralizing HTML, and an administrative view renders the saved value as executable markup. Administrative privileges are required to create the account, and another user's browser must display the stored name for the injected script to run in that user's session.

CVSS severity4.8
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in JFinal CMS 5.0.0 allows remote authenticated users to inject script through an administrator name. The /admin/admin/save endpoint stores the name field without neutralizing HTML, and an administrative view renders the saved value as executable markup. Administrative privileges are required to create the account, and another user's browser must display the stored name for the injected script to run in that user's session.

The record

CVE
CVE-2026-2200
Published
Feb 9, 2026
Updated
Feb 9, 2026
Vendor
jflyfox
Product
JFinal CMS
Classifications
CWE-79, CWE-94, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 9, 2026Record 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=5.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

jflyfox · JFinal CMSversion=5.0.0

Published CVSS scores

1.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/A:N
2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1203Exploitation for Client Execution

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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