What is CVE-2026-24836?

CVE-2026-24836 is a high-severity vulnerability in Dnnsoftware Dnn.platform, classified under Cross-site Scripting. CVSS score: 7.7/10. Published 2026-01-27.

How severe is CVE-2026-24836?

High severity. CVSS v3 base score is 7.7 out of 10.

XSS in Dnnsoftware Dnn.platform

CVE-2026-24836

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Starting in version 9.0.0 and prior to versions 9.13.10 and 10.2.0, extensions could write richtext in log notes which can includ…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (4.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H.

Affected products

Dnnsoftware Dnn.platform — versions >= 9.0.0, < 9.13.10, >= 10.0.0, < 10.2.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-2g5g-hcgh-q3rp (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-24836?: CVE-2026-24836 is a high-severity vulnerability in Dnnsoftware Dnn.platform, classified under Cross-site Scripting. CVSS score: 7.7/10. Published 2026-01-27.
How severe is CVE-2026-24836?: High severity. CVSS v3 base score is 7.7 out of 10.