Security readout for executives and security teams
Plain-English summary
DNN Platform has a stored cross-site scripting flaw in module titles. A highly privileged user could save script content that later runs in certain scenarios. Because the CVSS score is 9.1 and impact spans confidentiality, integrity, and availability, exposed DNN sites should prioritize upgrading to fixed versions.
Executive priority
Treat this as a priority upgrade for any internet-facing or business-critical DNN site. The flaw requires high privileges, which reduces likelihood, but the potential impact is rated critical and fixed versions are available.
Technical view
CVE-2026-24838 is CWE-79 stored XSS in Dnn.Platform before 9.13.10 and 10.x before 10.2.0. Module titles supported rich text that could include scripts. CVSS 3.1 is 9.1 with network access, low complexity, high privileges required, no user interaction, changed scope, and high CIA impact.
Likely exposure
Organizations running DNN Platform versions below 9.13.10, or 10.0.0 through before 10.2.0, are affected. Exposure is most relevant where high-privilege content administrators can create or edit module titles.
Exploitation context
The public sources do not state active exploitation, and this CVE is not marked in KEV. Exploitation requires high privileges according to the CVSS vector, but stored XSS can affect other users when malicious content is rendered in vulnerable scenarios.
Researcher notes
Evidence is limited to the CVE record and vendor GitHub advisory. The advisory identifies rich-text module titles as the vulnerable area and names fixed versions. No public source in the bundle confirms exploitation, workaround details, or affected CPEs.
Mitigation direction
- Upgrade DNN Platform to 9.13.10 or 10.2.0, as applicable.
- Review the GitHub security advisory for any updated vendor guidance.
- Limit high-privilege content administration access until upgraded.
Validation and detection
- Inventory DNN Platform instances and record exact versions.
- Flag versions below 9.13.10 and 10.0.0 through below 10.2.0.
- Confirm upgraded instances report 9.13.10, 10.2.0, or later.
- Review module title content for unexpected script-like entries.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-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 lookupCVE-2026-24838 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H2.36Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-w9pf-h6m6-v89hCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.