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CVE Record

CVE-2026-24833: DotNetNuke.Core Vulnerable to Stored XSS in Module Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to versions 9.13.10 and 10.2.0, a module could install with richtext in its description field which could contain scripts that will run for user in the Persona Bar. Versions 9.13.10 and 10.2.0 contain a fix for the issue.

HighCVSS 7.7Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

DNN Platform has a stored cross-site scripting issue in module descriptions. A module installed with rich text in its description could include script content that runs when a user views it in the Persona Bar. This affects versions before 9.13.10 and 10.0.0 through before 10.2.0.

Executive priority

Prioritize patching for public-facing or business-critical DNN sites, especially where multiple administrators or third-party modules are used. The issue requires elevated access, but successful exploitation could affect sensitive administrative sessions.

Technical view

CVE-2026-24833 is CWE-79 stored XSS in Dnn.Platform. The CVSS 3.1 score is 7.7 with high privileges and user interaction required, but scope is changed and confidentiality, integrity, and availability impacts are rated high. Fixed versions are 9.13.10 and 10.2.0.

Likely exposure

Organizations running DNN Platform below 9.13.10, or 10.x versions below 10.2.0, are exposed. Risk is most relevant where users can install modules or manage module metadata and where administrators use the Persona Bar.

Exploitation context

The provided sources do not report active exploitation, and this CVE is not listed as KEV. Exploitation appears to require high privileges and a user viewing affected content in the Persona Bar, which reduces likelihood but not potential impact.

Researcher notes

Evidence is limited to the CVE record and GitHub advisory. No public exploit activity is cited in the provided sources. Focus validation on version exposure, module installation workflows, Persona Bar usage, and administrative permission boundaries.

Mitigation direction

  • Upgrade affected DNN Platform 9.x installations to 9.13.10.
  • Upgrade affected DNN Platform 10.x installations to 10.2.0.
  • Review the GitHub advisory for any updated vendor guidance.
  • Limit module installation privileges to trusted administrators until upgraded.

Validation and detection

  • Inventory all DNN Platform instances and record exact versions.
  • Confirm whether versions match the affected ranges.
  • Verify upgraded systems report 9.13.10 or 10.2.0 as appropriate.
  • Review installed modules and descriptions for unexpected rich text content.
  • Check whether module management permissions are limited to trusted users.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-24833 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.7 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.7CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H16Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.7High
CVSS 3.1 vector shape for CVE-2026-24833Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
dnnsoftwareDnn.Platform< 9.13.10, >= 10.0.0, < 10.2.0Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.