CVE-2021-31858: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

July 20, 2022 (updated July 26, 2022)

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.

References

labs.integrity.pt/advisories/cve-2021-31858/
nvd.nist.gov/vuln/detail/CVE-2021-31858
www.dnnsoftware.com/community/security/security-center

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