Exploitation Summary
EIP tracks 1 public exploit for EIP-2026-110389. PoCs published by indoushka.
AI-analyzed exploit summary This exploit demonstrates a remote file upload vulnerability in osCSS 1.2.1, allowing an attacker to upload and execute arbitrary files via the file manager. The PoC provides HTML forms to upload files and create new files with arbitrary content.
Description
osCSS 1.2.1 - Arbitrary File Upload
Exploits (1)
exploitdb
WORKING POC
by indoushka · textwebappsphp
https://www.exploit-db.com/exploits/12856
This exploit demonstrates a remote file upload vulnerability in osCSS 1.2.1, allowing an attacker to upload and execute arbitrary files via the file manager. The PoC provides HTML forms to upload files and create new files with arbitrary content.
Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target:
osCSS 1.2.1
No auth needed
Prerequisites:
Access to the admin/file_manager.php endpoint
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026
Full analysis →
Details
Status
pre_cve
Tracked Since
Feb 18, 2026