Home/CVE/DotNetNuke (DNN) 9.9.1 CMS is vulnerable to a Stored Cross-Site Scripting vulnerability in the user profile biography se
CVE

CVE-2021-31858

DotNetNuke (DNN) 9.9.1 CMS is vulnerable to a Stored Cross-Site Scripting vulnerability in the user profile biography se

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.

MEDIUM · CVSS 5.4 EPSS 0.00234
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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Affected Products & Versions

1
dnnsoftware dotnetnuke<= 9.10.2
▣

Scoring & Timeline

5.4
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Jul 2022 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://labs.integrity.pt/advisories/cve-2021-31858/Third Party Advisory
https://www.dnnsoftware.com/community/security/security-centerVendor Advisory
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