CVE-2021-39250
5.4 · MEDIUMOverview
CVE-2021-39250 is a medium-severity vulnerability affecting invisioncommunity invision_power_board. It was published on August 17, 2021 and has a CVSS 3.1 base score of 5.4 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
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).
Remediation
Check the references section for vendor advisories and patches from invisioncommunity. Update invision_power_board to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| invisioncommunity | invision_power_board | >= 0, < 4.6.5.1 | Affected |
Frequently Asked Questions
What is CVE-2021-39250?
CVE-2021-39250 is a medium-severity vulnerability affecting invisioncommunity invision_power_board. It was published on August 17, 2021 and has a CVSS 3.1 base score of 5.4 (MEDIUM).
How severe is CVE-2021-39250?
This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-39250?
Check the references section for vendor advisories and patches from invisioncommunity. Update invision_power_board to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-39250?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-39250 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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