What is CVE-2021-26804?

CVE-2021-26804 is a vulnerability in Centreon Web versions 19.10.18, 20.04.8, and 20.10.2 that allows remote attackers to bypass validation by changing a file extension to ".gif" and uploading it in the "Administration/ Parameters/ Images" section of the application.

What is the severity of CVE-2021-26804?

The severity of CVE-2021-26804 is medium, with a CVSS score of 6.5.

How can remote attackers exploit CVE-2021-26804?

Remote attackers can exploit CVE-2021-26804 by changing a file extension to ".gif" and uploading it in the "Administration/ Parameters/ Images" section of Centreon Web.

Which versions of Centreon Web are affected by CVE-2021-26804?

Centreon Web versions 19.10.18, 20.04.8, and 20.10.2 are affected by CVE-2021-26804.

How can I fix CVE-2021-26804?

To fix CVE-2021-26804, update to a version of Centreon Web that is not affected by the vulnerability or apply the necessary patches provided by Centreon.

Vulnerability/
CVE-2021-26804

medium

6.5

CWE

276

4/5/2021

3/8/2024

CVE-2021-26804

First published: Tue May 04 2021(Updated: )

Insecure Permissions in Centreon Web versions 19.10.18, 20.04.8, and 20.10.2 allows remote attackers to bypass validation by changing any file extension to ".gif", then uploading it in the "Administration/ Parameters/ Images" section of the application.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Centreon Centreon Web	=19.10.18
Centreon Centreon Web	=20.04.8
Centreon Centreon Web	=20.10.2

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Frequently Asked Questions

What is CVE-2021-26804?
CVE-2021-26804 is a vulnerability in Centreon Web versions 19.10.18, 20.04.8, and 20.10.2 that allows remote attackers to bypass validation by changing a file extension to ".gif" and uploading it in the "Administration/ Parameters/ Images" section of the application.
What is the severity of CVE-2021-26804?
The severity of CVE-2021-26804 is medium, with a CVSS score of 6.5.
How can remote attackers exploit CVE-2021-26804?
Remote attackers can exploit CVE-2021-26804 by changing a file extension to ".gif" and uploading it in the "Administration/ Parameters/ Images" section of Centreon Web.
Which versions of Centreon Web are affected by CVE-2021-26804?
Centreon Web versions 19.10.18, 20.04.8, and 20.10.2 are affected by CVE-2021-26804.
How can I fix CVE-2021-26804?
To fix CVE-2021-26804, update to a version of Centreon Web that is not affected by the vulnerability or apply the necessary patches provided by Centreon.

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version/centreon centreon web/20.04.8
version/centreon centreon web/20.10.2

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