CVE-2025-65657Public exploitNetwork attack vector

Authenticated code execution via executable PHP upload

Published Dec 2, 2025 · Updated Dec 2, 2025

Unrestricted file upload in FeehiCMS 2.1.1 allows remote authenticated users to execute arbitrary code through Ad Management. The Ad Management update endpoint accepts an intercepted image upload whose filename extension and content are changed to PHP, then stores it at a web-accessible path without blocking execution. Backend access is required; requesting the uploaded PHP file causes the web server to run attacker-supplied system commands.

CVSS severity6.5
Medium
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 FeehiCMS 2.1.1 allows remote authenticated users to execute arbitrary code through Ad Management. The Ad Management update endpoint accepts an intercepted image upload whose filename extension and content are changed to PHP, then stores it at a web-accessible path without blocking execution. Backend access is required; requesting the uploaded PHP file causes the web server to run attacker-supplied system commands.

The record

CVE
CVE-2025-65657
Published
Dec 2, 2025
Updated
Dec 2, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

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

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.6kiwi865CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1505.003Server Software Component: Web Shell

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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