CVE-2026-41878 PUBLISHED

Insecure Direct Object Reference in R-SOFT DMS

Assigner: CERT-PL
Reserved: 22.04.2026 Published: 10.07.2026 Updated: 10.07.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	R-SOFT SERWIS
Product	DMS
Versions	Default: unaffected affected from 0 to v3.19-2862 (excl.) affected from 0 to v3.17-2580 (excl.)

Credits

Marek Figielski (Vanilla.pl) finder

References

https://cert.pl/posts/2026/07/CVE-2026-41876

Problem Types

CWE-639 Authorization Bypass Through User-Controlled Key CWE