CVE-2026-105123
8.8 HIGHpublic exploit availablePublished 2026-10-04 · Updated 2026-10-06
AI risk analysis
- Summary
- This vulnerability allows authenticated editors to execute arbitrary code by uploading .php files and writing outside the media directory, leading to remote code execution.
- Exploitability
- Exploitation requires an authenticated editor and knowledge of the specific path vulnerability, making it moderately hard to exploit.
- Blast radius
- If exploited, attackers can gain full control over the web server, leading to potential data loss and system compromise.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to w (vincent-peugnet/wcms) 3.19.0 or later.
Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.
NVD description
W (vincent-peugnet/wcms) through 3.18.0 contains a remote code execution vulnerability that allows authenticated editors to write arbitrary files by abusing the unvalidated path in POST /api/v0/media/upload/[*:path]. Attackers can upload .php files executed by the web server, use encoded ../ sequences to write outside the media directory, and delete arbitrary files via DELETE /api/v0/media/[*:path].
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-434
Public exploit & PoC references
- https://github.com/vincent-peugnet/wcms
- https://github.com/vincent-peugnet/wcms/blob/cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2/app/class/Controllerapimedia.php#L24-L44
- https://github.com/vincent-peugnet/wcms/blob/cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2/app/class/Media.php#L98
- https://github.com/vincent-peugnet/wcms/issues/662
All references
- https://github.com/vincent-peugnet/wcms
- https://github.com/vincent-peugnet/wcms/blob/cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2/app/class/Controllerapimedia.php#L24-L44
- https://github.com/vincent-peugnet/wcms/blob/cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2/app/class/Media.php#L98
- https://github.com/vincent-peugnet/wcms/issues/662
- https://www.vulncheck.com/advisories/w-wcms-through-3.18.0-rce-and-arbitrary-file-write-via-media-upload-api
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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