What’s Vulnerable › Vulnerabilities

CVE-2021-31858

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-07-20 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• DotNetNuke CMS Fixed in 9.1.1: through 9.10.2

References

• https://labs.integrity.pt/advisories/cve-2021-31858/
• https://www.dnnsoftware.com/community/security/security-center
• https://labs.integrity.pt/advisories/cve-2021-31858/
• https://www.dnnsoftware.com/community/security/security-center

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