How serious is CVE-2025-59903?

This vulnerability has a CVSS score of 5.1 out of 10, classified as MEDIUM severity. No public exploit code has been identified yet.

Which products are affected by CVE-2025-59903?

Check the official CVE details for a complete list of affected products and versions.

How do I fix CVE-2025-59903?

To remediate CVE-2025-59903, check for security patches from the vendor. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2025-59903

Medium

|5.1

No Exploit

Plain English Summary

AI-powered analysis for quick understanding

An attacker can upload a malicious SVG image that contains harmful scripts, which are then stored on the server and executed whenever any user views that image. This vulnerability occurs because the system fails to properly clean or check the SVG files before saving them.

Technical Description

Stored Cross-Site Scripting (XSS) vulnerability in Kubysoft, where uploaded SVG images are not properly sanitized. This allows attackers to embed malicious scripts within SVG files as visual content, which are then stored on the server and executed in the context of any user accessing the compromised resource.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeChanged

Vector String

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:L/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

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$690($500-$1K)

Vendor Response

Grade APatched in 2 days

Quick Information

Published

Feb 16, 2026

about 2 months ago

Last Modified

Feb 18, 2026

about 2 months ago