---
title: "CVE-2026-24838: DotNetNuke.Core Vulnerable to Stored XSS via Module Title"
url: https://erroneo.us/security/cve/CVE-2026-24838/
description: "CVE-2026-24838 (DotNetNuke.Core (NuGet)): DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem.…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-01-27
date_modified: 2026-01-28
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-24838"
kev: false
cvss: 9.1
epss: 0.00219
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-24838: DotNetNuke.Core Vulnerable to Stored XSS via Module Title

**Signal:** Critical, preconditions apply. Severe if exploited, but exploitation needs conditions that may not apply to you. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.2% , percentile 12: FIRST’s model estimates a 0.2% chance of exploitation activity in the next 30 days, higher than 12% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs an account (high (admin)). Exposure depends on who can log in.
- Only applies if your dependency tree includes DotNetNuke.Core (NuGet) < 9.13.10, fixed in 9.13.10 ; DotNetNuke.Core (NuGet) >= 10.0.0, < 10.2.0, fixed in 10.2.0 . Check your lockfile, including transitive dependencies.

## What it is

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, module title supports richtext which could include scripts that would execute in certain scenarios. Versions 9.13.10 and 10.2.0 contain a fix for the issue.

## Affected packages

- NuGet `DotNetNuke.Core` < 9.13.10 → fixed: 9.13.10
- NuGet `DotNetNuke.Core` >= 10.0.0, < 10.2.0 → fixed: 10.2.0

## Affected products (CVE record)

- dnnsoftware Dnn.Platform: < 9.13.10, >= 10.0.0, < 10.2.0

## Severity

- GitHub_M CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.22% probability of exploitation activity in the next 30 days; percentile 12.

## Sources

- [GitHub Advisory GHSA-w9pf-h6m6-v89h](https://github.com/advisories/GHSA-w9pf-h6m6-v89h)
- [CVE.org record CVE-2026-24838](https://www.cve.org/CVERecord?id=CVE-2026-24838)
- [NVD entry CVE-2026-24838](https://nvd.nist.gov/vuln/detail/CVE-2026-24838)
- [github.com](https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-w9pf-h6m6-v89h)
- [github.com](https://github.com/dnnsoftware/Dnn.Platform/commit/4a4bcbcdf3cedbf702816f8168c4d51bf688f7f6)
- [github.com](https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.0)

---
Source page: https://erroneo.us/security/cve/CVE-2026-24838/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt