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Medium

DNN vulnerable to stored cross-site-scripting (XSS) via SVG upload

  • Disclosed: 29.10.2025
  • Updated: 11.10.2026 11:23

Summary

Sanitization of the content of uploaded SVG files was not covering all possible XSS scenarios.

Details

DNN validates the contents of SVG's to ensure they are valid and do not contain any malicious code. These checks were introduced as part of CVE-2025-48378.

However, the checks to ensure there are no script elements within the SVG files are not comprehensive and may allow some malicious SVG files to be uploaded.

As this vulnerability allows for the execution of arbitrary JavaScript code within the context of the user's browser, it can lead to a range of attacks, including data exfiltration, session hijacking, and defacement of the web application to name a few.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
.NET (NuGet) DotNetNuke.Core < 10.1.1 10.1.1

References

CVSS score 6.4/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Platform
.NET (NuGet)
Package
DotNetNuke.Core
Disclosed
29.10.2025
Updated
11.10.2026 11:23

Sources and licenses

OSV / GitHub Advisory Database - GHSA-hmvq-8p83-cq52 - CC BY 4.0

Vulnerability history: DotNetNuke.Core

All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (36) in the archive
Total entries
36
First → latest
10.2018 04.2026
Without a fix
3
Exploited in attacks
3

Severity breakdown

  • Critical 3
  • High 10
  • Medium 21
  • Low 2

Disclosures per year

Severity:
  1. DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload
    High · 8.0 CVE-2026-40321 < 10.2.2 10.2.2
  2. DotNetNuke.Core Vulnerable to Stored XSS via Module Title
    Critical · 9.1 CVE-2026-24838 < 9.13.10, >= 10.0.0, < 10.2.0 9.13.10, 10.2.0
  3. DotNetNuke.Core Vulnerable to Stored XSS in Module Deletion Confirmation Modal
    High · 7.6 CVE-2026-24837 >= 9.0.0, <= 9.13.9, >= 10.0.0, < 10.2.0 10.2.0
  4. DotNetNuke.Core Vulnerable to Stored XSS in Scheduler LogNotes
    High · 7.6 CVE-2026-24836 >= 9.0.0, <= 9.13.9, >= 10.0.0, < 10.02.0 10.02.0
  5. DNN vulnerable to stored cross-site-scripting (XSS) via SVG upload this entry
    Medium · 6.4 CVE-2025-64094 < 10.1.1 10.1.1
  6. DNN Vulnerable to Stored Cross-Site Scripting (XSS) in the Prompt module
    Critical · 9.0 CVE-2025-59545 < 10.1.0 10.1.0
  7. DNN Path Traversal via Zip Slip
    High · 8.8 CVE-2020-5187 < 9.5.0 9.5.0
  8. Inadequate Encryption Strength in DotNetNuke
    High · 7.5 Exploited in attacks CVE-2018-15811 >= 9.2.0, < 9.2.2 9.2.2
  9. Insufficient Entropy in DotNetNuke
    High · 7.5 CVE-2018-15812 >= 9.2.0, < 9.2.2 9.2.2
  10. Insufficient Entropy in DotNetNuke
    High · 7.5 CVE-2018-18326 < 9.3.0 9.3.0
  11. Inadequate Encryption Strength in DotNetNuke
    High · 7.5 Exploited in attacks CVE-2018-18325 < 9.3.0 9.3.0
  12. DNN (aka DotNetNuke) has Remote Code Execution via a cookie
    High · 8.8 Exploited in attacks CVE-2017-9822 < 9.1.1 9.1.1
  13. The installation wizard in DotNetNuke (DNN) allows privilege escalation
    Critical · 9.8 CVE-2015-2794 < 7.4.1 7.4.1
  14. High severity vulnerability that affects DotNetNuke.Core
    High · 7.5 CVE-2017-0929 < 9.2.0 9.2.0

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