CVE-2025-8265 | BDVDB-2026-287677 Detail

299KoCMS

Description#

A vulnerability classified as critical has been found in 299Ko CMS 2.0.0. This affects an unknown part of the file /admin/filemanager/view of the component File Management. The manipulation leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact low. Attack vector: network.

Weaknesses#

CWE-434 Unrestricted Upload of File with Dangerous Type
CWE-284 Improper Access Control

References#

Exploit#

https://github.com/loopholesgenius/cve/blob/main/There%20is%20a%20file%20management%20section%20in%20the%20background%20management%20(1).pdf

History#

Version 12025-07-28Record published in the CVE List.

Published

Published: 2025-07-28
Last modified: 2025-07-28

Vendor information

Vendor: 299Ko
Product: CMS

All 299Ko vulnerabilities

Score

4.7 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 34.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Unrestricted File Upload

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
2.0.0
Fixed
Not stated

Scoring System

CVSS v4.0

5.1 Medium

CVSS: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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	None
Privileges Required	High
User Interaction	None
Vulnerable System Confidentiality	Low
Vulnerable System Integrity	Low
Vulnerable System Availability	Low
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

4.7 Medium

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	High
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	Low
Availability	Low

CVSS v3.0

4.7 Medium

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	High
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	Low
Availability	Low

CVSS v2

5.8 Medium

AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Metric breakdown
Access Vector	Network
Access Complexity	Low
Authentication	Multiple
Confidentiality Impact	Partial
Integrity Impact	Partial
Availability Impact	Partial

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).