CVE-2021-40100: XSS
First published: Fri Sep 24 2021(Updated: )
An issue was discovered in Concrete CMS through 8.5.5. Stored XSS can occur in Conversations when the Active Conversation Editor is set to Rich Text.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Concrete5 | <=8.5.5 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-40100?
The severity of CVE-2021-40100 is considered medium due to the potential impact of stored XSS.
How do I fix CVE-2021-40100?
To fix CVE-2021-40100, upgrade Concrete CMS to version 8.5.6 or later.
What causes the vulnerability in CVE-2021-40100?
CVE-2021-40100 is caused by improper validation of user input in the Active Conversation Editor when set to Rich Text.
What are the potential impacts of CVE-2021-40100?
The potential impacts of CVE-2021-40100 include unauthorized script execution and potential account compromise.
Who is affected by CVE-2021-40100?
CVE-2021-40100 affects users of Concrete CMS versions up to and including 8.5.5.
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