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

published 2025-10-28 12 mo ago modified 2026-10-08 32 d ago also EUVD-2025-36565 , GHSA-hmvq-8p83-cq52

cvss: 6.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits: 0; none known

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to 10.1.1, sanitization of the content of uploaded SVG files was not covering all possible XSS scenarios. This vulnerability exists because of an incomplete fix for CVE-2025-48378. This vulnerability is fixed in 10.1.1.

Patch / fix

fixed in 2

nuget DotNetNuke.Core 10.1.1
dnnsoftware dotnetnuke 10.1.1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 12 mo ago (2025-10-29)

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
GitHub	3.1	6.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
nuget	DotNetNuke.Core	<10.1.1	10.1.1

Affected products

dnnsoftware Dnn.Platform

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /dnnsoftware/Dnn.Platform/security/advisories/GHSA-hmvq-8p83-cq52
web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2025-64094
advisory
github.com /dnnsoftware/Dnn.Platform
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary