Login Request a demo
Medium severity · published Jul 20, 2022
CVE-2021-31858
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…
5.4
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
Dotnetnuke · Dnnsoftware
through 9.10.2 · source: NVD
Affected product
DO
Dotnetnuke
Dnnsoftware
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31858
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31858
Third Party Advisory
https://labs.integrity.pt/advisories/cve-2021-31858/
Vendor Advisory
https://www.dnnsoftware.com/community/security/security-center
More from Dotnetnuke
8.8
CVE-2017-9822
DNN (aka DotNetNuke) before 9.1.1 has Remote Code Execution via a cookie, aka "2017-08 (Critical) Possible remote code execution on DNN sites."
7.5
CVE-2018-18325
DotNetNuke (DNN) Inadequate Encryption Strength Vulnerability
7.5
CVE-2018-15811
DNN (aka DotNetNuke) 9.2 through 9.2.1 uses a weak encryption algorithm to protect input parameters
9.8
CVE-2025-64095
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem
9.8
CVE-2015-2794
The installation wizard in DotNetNuke (DNN) before 7.4.1 allows remote attackers to reinstall the application and gain SuperUser access via a direct request to…