Vulnerability · Published Jul 28, 2025 · Assigned by VulDB

CVE-2025-8265299Ko CMS File Management view unrestricted upload

Medium 4.7

In plain English

A medium-severity unrestricted file upload in CMS from 299Ko. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).

Severity (CVSS 3.1)4.7Medium

Exploit odds (30 days)0.4%top 65.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
299Ko	CMS	2.0.0

Weakness: CWE-434, CWE-284 · Vector: 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

References

VDB-317853 | 299Ko CMS File Management view unrestricted upload vdb-entry
VDB-317853 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #617651 | 299Ko 299Ko CMS 2.0.0 RCE third-party-advisory
https://github.com/loopholesgenius/cve/blob/main/There%20is%20a%20file%20management%20section%20in%20the%20background%20management%20(1).pdf exploit