CVE-2021-39250: XSS
First published: Tue Aug 17 2021(Updated: )
Invision Community (aka IPS Community Suite or IP-Board) before 4.6.5.1 allows stored XSS, with resultant code execution, because an uploaded file can be placed in an IFRAME element within user-generated content. For code execution, the attacker can rely on the ability of an admin to install widgets, disclosure of the admin session ID in a Referer header, and the ability of an admin to use the templating engine (e.g., Edit HTML).
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Invisioncommunity Invision Power Board | <4.6.5.1 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-39250?
CVE-2021-39250 is a vulnerability in Invision Community (aka IPS Community Suite or IP-Board) before version 4.6.5.1 that allows stored XSS with code execution.
What is the severity of CVE-2021-39250?
The severity of CVE-2021-39250 is medium with a CVSS score of 5.4.
How does CVE-2021-39250 work?
CVE-2021-39250 allows an attacker to upload a file that can be placed in an IFRAME element within user-generated content, leading to stored XSS and potential code execution.
How can I fix CVE-2021-39250?
To fix CVE-2021-39250, upgrade Invision Community to version 4.6.5.1 or higher.
Are there any references for CVE-2021-39250?
Yes, you can find more information about CVE-2021-39250 in the release notes of version 4.6.5.1 and in an SSD advisory.
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