CVE-2026-41877Stored XSS in R-SOFT DMS

5.1MediumCVSS base score
0.39%Exploitation in 30 daysEPSS · top 66% of all CVEs
NoKnown exploitednot in CISA's KEV catalog
NonePublic exploitsnone known yet

Description

R-SOFT DMS is vulnerable to Stored XSS in file upload functionality. Authenticated attacker can inject arbitrary HTML and JS into the name of the file being uploaded, which will be executed when visiting file list or upload status by other users. This issue was fixed in version v3.19-2832 and v3.17-2580.

Timeline

2026
22 Apr 2026
22 Apr 2026
ID reserved
By CERT-PL
10 Jul 20263 months later
10 Jul 2026· 3 months later
Published

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-41877, by who scored it
Scored by	CVSS	Score	Vector
CERT-PLCNA (assigner)	4.0	Medium5.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N
NVDNVD · Deferred	4.0	Medium5.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS (exploitation in 30 days): 0.39% · top 66% of all CVEs (14 Nov 2026)
CISA SSVC: Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.1.

Affected products

R-SOFT SERWIS · DMS
- affected < v3.19-2832
- affected < v3.17-2580

References1

https://cert.pl/posts/2026/07/CVE-2026-41876 (opens in a new tab)third-party-advisory

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

[![CVE-2026-41877](https://cveledger.app/badge/CVE-2026-41877.svg)](https://cveledger.app/cve/CVE-2026-41877)

Record last updated 10 Jul 2026, 10:56 UTC.