CVE-2026-41878
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk37th percentile - higher than 37% of all known CVEs
Summary
An IDOR vulnerability in R-SOFT DMS allows unauthorized file access by manipulating IDs in download requests. The system does not verify user permissions for specific files, relying solely on session authentication.
Risk Assessment
Any authenticated user can download any file stored in the system, leading to sensitive data leakage, privacy breaches, and potential financial or reputational damage.
Recommendation
Immediately update R-SOFT DMS to version v3.19-2862 or v3.17-2580, which fix the vulnerability. As a temporary measure, restrict access to file download endpoints to trusted users only.
Other vulnerabilities in R-SOFT DMS
See all- CVE-2026-41880Critical
R-SOFT DMS is vulnerable to OS Command Injection in the OCR module. Command execution functions accept user-controllable file paths without proper sanitization before passing them to the system shell via SSH. In standard web upload flow URL encoding neutralizes the injection, but an authenticated attacker who can trigger OCR for the uploaded file can execute commands as root.
- CVE-2026-41879High
The vulnerability in R-SOFT DMS stores superadmin credentials using a non-salted nested MD5 hash. This allows an attacker who obtains the password hash to decode superadmin credentials. Critically, this password cannot be changed except by modifying the configuration file.
- CVE-2026-41877Medium
Stored XSS vulnerability in the file upload functionality of R-SOFT DMS. An authenticated attacker can inject arbitrary HTML and JavaScript into the uploaded file name, which executes when other users view the file list or upload status.
- CVE-2026-41876High
OS Command Injection vulnerability in the konwertujAction() function of R-SOFT DMS allows an authenticated attacker to execute arbitrary system commands with the privileges of the web server user. The issue is fixed in versions v3.19-2752 and v3.17-2580.
Original NVD description (English source)
R-SOFT DMS is vulnerable to Insecure Direct Object Reference (IDOR) attack in multiple file download endpoints. The application fetches files from the database by ID and serves them to whoever requests them, relying only on session authentication, meaning any valid user can access any file. This issue was fixed in version v3.19-2862 and v3.17-2580.