CVE-2021-23266 Explained : Impact and Mitigation
Learn about CVE-2021-23266, a vulnerability in Crafter Studio allowing malicious users to manipulate the log viewer, potentially leading to misleading messages. Find details, impacts, and mitigation steps here.
An anonymous user can craft a URL with text that ends up in the log viewer as is. The text can then include textual messages to mislead the administrator.
Understanding CVE-2021-23266
This CVE involves an improper output neutralization vulnerability in Crafter Studio, allowing an anonymous user to manipulate text displayed in the log viewer.
What is CVE-2021-23266?
The CVE-2021-23266 pertains to Crafter Studio where a crafted URL can result in unfiltered text being displayed in the log viewer, potentially leading to misleading messages being shown to system administrators.
The Impact of CVE-2021-23266
With a CVSS base score of 4.3 (Medium Severity), this vulnerability can allow unauthorized users to present deceptive information in the log viewer, potentially leading to confusion or other security risks.
Technical Details of CVE-2021-23266
This section provides more detailed technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from the improper handling of text input in Crafter Studio, leading to unfiltered data making its way into the log viewer, enabling the display of tailored messages by malicious actors.
Affected Systems and Versions
Crafter CMS version 3.1 is affected by this vulnerability, up to and including version 3.1.17.
Exploitation Mechanism
An anonymous user can exploit this vulnerability by manipulating the URL to inject text that will be displayed in the log viewer without proper filtering.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-23266, immediate actions and long-term security practices are recommended.
Immediate Steps to Take
- Users are advised to update Crafter CMS to a patched version where the issue has been resolved.
- Monitor log viewer activities for any suspicious or misleading messages.
Long-Term Security Practices
- Regularly update and patch software to prevent known vulnerabilities from being exploited.
- Implement access controls to restrict unauthorized access to the log viewer.
Patching and Updates
Ensure that Crafter CMS is kept up to date with the latest security patches and fixes to address vulnerabilities like CVE-2021-23266.