CVE-2021-31858

low-risk

Published 2022-07-20

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.

Do I need to act?

0.23% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.4/10 Medium

NETWORK / LOW complexity

Affected Products (1)

Dotnetnuke

Affected Vendors

Dnnsoftware

References (4)

Third Party Advisory https://labs.integrity.pt/advisories/cve-2021-31858/

Vendor Advisory https://www.dnnsoftware.com/community/security/security-center

Third Party Advisory https://labs.integrity.pt/advisories/cve-2021-31858/

Vendor Advisory https://www.dnnsoftware.com/community/security/security-center

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low-risk

Severity 21/34 · High

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal