CVE-2026-41877: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') in R-SOFT SERWIS DMS
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.
AI Analysis
Technical Summary
CVE-2026-41877 is a stored XSS vulnerability in R-SOFT SERWIS DMS affecting the file upload feature. The issue arises because the application does not properly neutralize input in the filename field during web page generation, allowing injection of arbitrary HTML and JavaScript. Authenticated attackers can exploit this by uploading files with maliciously crafted names. When other users access the file list or upload status pages, the injected script executes in their browsers. The vendor fixed this vulnerability in versions v3.19-2832 and v3.17-2580.
Potential Impact
Successful exploitation allows an authenticated attacker to execute arbitrary scripts in the context of other users viewing the file list or upload status pages. This can lead to session hijacking, unauthorized actions, or other client-side impacts typical of stored XSS vulnerabilities. The vulnerability requires authentication and user interaction (viewing affected pages).
Mitigation Recommendations
This vulnerability is fixed in R-SOFT SERWIS DMS versions v3.19-2832 and v3.17-2580. Users should upgrade to these or later versions to remediate the issue. Patch status is confirmed by the vendor's version fixes. No additional mitigation guidance is provided or required beyond applying the official fix.
CVE-2026-41877: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') in R-SOFT SERWIS DMS
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.
CVSS v4.0
Score 5.1medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-41877 is a stored XSS vulnerability in R-SOFT SERWIS DMS affecting the file upload feature. The issue arises because the application does not properly neutralize input in the filename field during web page generation, allowing injection of arbitrary HTML and JavaScript. Authenticated attackers can exploit this by uploading files with maliciously crafted names. When other users access the file list or upload status pages, the injected script executes in their browsers. The vendor fixed this vulnerability in versions v3.19-2832 and v3.17-2580.
Potential Impact
Successful exploitation allows an authenticated attacker to execute arbitrary scripts in the context of other users viewing the file list or upload status pages. This can lead to session hijacking, unauthorized actions, or other client-side impacts typical of stored XSS vulnerabilities. The vulnerability requires authentication and user interaction (viewing affected pages).
Mitigation Recommendations
This vulnerability is fixed in R-SOFT SERWIS DMS versions v3.19-2832 and v3.17-2580. Users should upgrade to these or later versions to remediate the issue. Patch status is confirmed by the vendor's version fixes. No additional mitigation guidance is provided or required beyond applying the official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CERT-PL
- Date Reserved
- 2026-04-22T11:32:15.204Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a50c6ea68715ace436a3da4
Added to database: 07/10/2026, 10:18:18 UTC
Last enriched: 07/10/2026, 10:32:58 UTC
Last updated: 07/10/2026, 11:18:12 UTC
Views: 3
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