CVE-2025-11136Public exploitNetwork attack vector

Authenticated code execution via unrestricted public upload

Published Sep 29, 2025 · Updated Sep 29, 2025

Unrestricted file upload in YiFang CMS 2.0.0 through 2.0.2 allows remote authenticated users to write files under the public web root. The Backend webUploader flow accepts caller-controlled uploadpath, chunk, and md5value inputs and creates the destination without restricting dangerous file types. A logged-in backend user can place an executable server-side file in a web-accessible path and request it for code execution.

CVSS severity7.2
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in YiFang CMS 2.0.0 through 2.0.2 allows remote authenticated users to write files under the public web root. The Backend webUploader flow accepts caller-controlled uploadpath, chunk, and md5value inputs and creates the destination without restricting dangerous file types. A logged-in backend user can place an executable server-side file in a web-accessible path and request it for code execution.

The record

CVE
CVE-2025-11136
Published
Sep 29, 2025
Updated
Sep 29, 2025
Vendor
YiFang
Product
YiFang CMS
Classifications
CWE-284, CWE-434, T1505.003, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 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=2.0.0
  2. Affected versionversion=2.0.1
  3. Affected versionversion=2.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

YiFang · YiFang CMSversion=2.0.0; version=2.0.1; version=2.0.2

Published CVSS scores

5.8VulDBAV:N/AC:L/Au:M/C:P/I:P/A:P
4.7VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
2.0VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Web Shell
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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