CVE-2025-59535
published 2025-09-22CVE-2025-59535: DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, arbitrary themes can be…
PriorityP336medium6.5CVSS 3.1
AVNACLPRNUINSUCNILAL
EPSS
0.32%
24.0th percentile
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, arbitrary themes can be loaded through query parameters. If an installed theme had a vulnerability, even if it was not used on any page, this could be loaded on unsuspecting clients without knowledge of the site owner. This issue has been patched in version 10.1.0.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| dnnsoftware | dnn.platform | < 10.1.0 | 10.1.0 |
| dnnsoftware | dotnetnuke | < 10.1.0 | 10.1.0 |
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
DNN allows loading unused themes on anonymous clients through query parameters
ghsa·2025-09-22
CVE-2025-59535 [MEDIUM] CWE-20 DNN allows loading unused themes on anonymous clients through query parameters
DNN allows loading unused themes on anonymous clients through query parameters
### Summary
Arbitrary themes can be loaded through query parameters. If an installed theme had a vulnerability, even if it was not used on any page, this could be loaded on unsuspecting clients without knowledge of the site owner.
### Details
Many people who run DNN sites have a number of installed themes that they do not actually use. This could be because they were testing many themes during initial setup, because they have changed themes over time, or because they have development and production versions of a theme. Whatever the reason, many times the unused themes will become outdated over time as site admins wouldn't have reason to update something that is not used. However, this could introduce an entry
OSV
DNN allows loading unused themes on anonymous clients through query parameters
osv·2025-09-22
CVE-2025-59535 [MEDIUM] DNN allows loading unused themes on anonymous clients through query parameters
DNN allows loading unused themes on anonymous clients through query parameters
### Summary
Arbitrary themes can be loaded through query parameters. If an installed theme had a vulnerability, even if it was not used on any page, this could be loaded on unsuspecting clients without knowledge of the site owner.
### Details
Many people who run DNN sites have a number of installed themes that they do not actually use. This could be because they were testing many themes during initial setup, because they have changed themes over time, or because they have development and production versions of a theme. Whatever the reason, many times the unused themes will become outdated over time as site admins wouldn't have reason to update something that is not used. However, this could introduce an entry
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-09-22
Published