Medium severity5.4NVD Advisory· Published Jul 20, 2022· Updated Jun 17, 2026

CVE-2021-31858

Description

DotNetNuke (DNN) 9.9.1 CMS is vulnerable to a Stored Cross-Site Scripting vulnerability in the user profile biography section which allows remote authenticated users to inject arbitrary code via a crafted payload.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Dnnsoftware/Dotnetnuke
cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
Range: <=9.10.2
DotNetNuke/DNN CMSdescription
Dnnsoftware/DNNllm-create
Range: <9.9.1
Dnnsoftware/DNN CMSllm-create
Range: <9.9.1

Patches

Vulnerability mechanics

References

labs.integrity.pt/advisories/cve-2021-31858/nvdThird Party Advisory
www.dnnsoftware.com/community/security/security-centernvdVendor Advisory

News mentions

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cvss	0.351
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000