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TI-2025-07564 Aliases CVE-2025-8265GHSA-mj82-h8g3-6cr5

299Ko CMS File Management view unrestricted upload

Priority MEDIUM 56CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass, Code execution
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-284 and CWE-434.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00403 34th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
299KoCMS2.0.0—No fix listedCNA
  • CMS Vendor299Ko Affected 2.0.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-8265
  2. 2026-10-03 Alias added: GHSA-mj82-h8g3-6cr5

References

Exploit 1

  • TI-2026-49919 299Ko - Unauthenticated Reflected XSS in Public Contact Form CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences