CVE-2025-59903
CVE-2025-59903 is a medium-severity vulnerability in Kubysoft with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 5.4)
- CVSS v4: 5.1
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-206983
- Weakness: CWE-79
- Affected product: Kubysoft
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-59903?
- 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.
- How severe is CVE-2025-59903?
- CVE-2025-59903 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2025-59903 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-59903?
- CVE-2025-59903 affects Kubysoft. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-59903?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-59903 have an EU (EUVD) identifier?
- Yes. CVE-2025-59903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206983.
- When was CVE-2025-59903 published?
- CVE-2025-59903 was published on 2026-02-16 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:kubysoft:kubysoft:-:*:*:*:*:*:*:*
More vulnerabilities in Kubysoft
- CVE-2025-59905 — Medium (CVSS 6.1): Cross-Site Scripting (XSS) vulnerability reflected in Kubysoft, which occurs through multiple parameters within the…
- CVE-2025-59904 — Medium (CVSS 5.4): Stored Cross-Site Scripting (XSS) vulnerability in Kubysoft, which is triggered through multiple parameters in the…
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