CVE-2025-59903
Stored XSS in Kubysoft via Unsanitized SVG Uploads
Publication date: 2026-02-16
Last updated on: 2026-03-09
Assigner: Spanish National Cybersecurity Institute, S.A. (INCIBE)
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| kubysoft | kubysoft | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
How can this vulnerability impact me? :
The impact of this vulnerability is that attackers can execute malicious scripts in the browsers of users who access the affected SVG images. This can lead to unauthorized actions performed on behalf of the user, theft of sensitive information, session hijacking, or other malicious activities depending on the script's intent.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
Can you explain this vulnerability to me?
This vulnerability is a Stored Cross-Site Scripting (XSS) issue in Kubysoft. It occurs because uploaded SVG images are not properly sanitized, allowing attackers to embed malicious scripts within these SVG files. These malicious scripts are then stored on the server and executed in the context of any user who accesses the compromised resource.