How severe is CVE-2026-24838?

CVE-2026-24838 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-24838 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24838?

CVE-2026-24838 affects Dnnsoftware Dotnetnuke. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24838?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-24838 have an EU (EUVD) identifier?

Yes. CVE-2026-24838 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4902.

When was CVE-2026-24838 published?

CVE-2026-24838 was published on 2026-01-28 and last updated on 2026-06-17.

CVE-2026-24838

CVE-2026-24838 is a critical-severity vulnerability in Dnnsoftware Dotnetnuke with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4902
Weakness: CWE-79
Affected product: Dnnsoftware Dotnetnuke
Published: 2026-01-28
Last modified: 2026-06-17

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, 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.

Frequently asked questions

What is CVE-2026-24838?: 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.
How severe is CVE-2026-24838?: CVE-2026-24838 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-24838 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24838?: CVE-2026-24838 affects Dnnsoftware Dotnetnuke. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24838?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-24838 have an EU (EUVD) identifier?: Yes. CVE-2026-24838 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4902.
When was CVE-2026-24838 published?: CVE-2026-24838 was published on 2026-01-28 and last updated on 2026-06-17.

References

https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-w9pf-h6m6-v89h

Affected products (1)

cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*

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