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VulnerabilityPublished Updated

CVE-2025-52487: dnnsoftware Dnn.Platform · Incorrect Authorization

Affects dnnsoftware Dnn.PlatformSource CVE Database V5

0

Not known to be exploited · CVSS 8.8 High : upgrade to 10.0.1 soon.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 4.0 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 10.0.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade dnnsoftware Dnn.Platform to 10.0.1.

Affected software

ProductAffectedFixed in
NuGetdnn.platformpkg:nuget/dnn.platformOther threatsAffected
  • <10.0.1 >=7.0.0
Fixed in
  • 10.0.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

  1. Immediate upgrade: Organizations should prioritize upgrading all Dnn.Platform instances to version 10.0.1 or later, where the vulnerability is patched.
  2. Network-level controls: Implement additional network-level access controls such as firewall rules or VPN restrictions to limit access to the CMS login interfaces to trusted IPs, adding a defense-in-depth layer beyond the application-level IP filters.
  3. Monitoring and logging: Enhance monitoring of login attempts and access logs for unusual patterns, especially login attempts from unexpected IP addresses or geographic locations.
  4. Web Application Firewall (WAF): Deploy or update WAF rules to detect and block suspicious requests that attempt to bypass IP filtering mechanisms.
  5. Incident response readiness: Prepare incident response procedures to quickly address any signs of compromise related to this vulnerability, including account lockouts and forensic analysis.
  6. Configuration review: Review and tighten other authentication and authorization configurations within Dnn.Platform to reduce the risk of privilege escalation.
  7. User awareness: Educate administrators about the vulnerability and the importance of timely patching and monitoring.

Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. In versions 7.0.0 to before 10.0.1, DNN.PLATFORM allows a specially crafted request or proxy to be created that could bypass the design of DNN Login IP Filters allowing login attempts from IP Addresses not in the allow list. This issue has been patched in version 10.0.1.

References

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