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CVE-2019-12102

9.1 · CRITICAL

Kentico 11 through 12 lets attackers upload and explore files without authentication via the cmsmodules/medialibrary/formcontrols/liveselectors/insertimageormedia/tabs_media.aspx URI.

Published May 22, 2019CWE-732EPSS 2.16%

Overview

CVE-2019-12102 is a critical-severity vulnerability. It was published on May 22, 2019 and has a CVSS 3.0 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Kentico 11 through 12 lets attackers upload and explore files without authentication via the cmsmodules/medialibrary/formcontrols/liveselectors/insertimageormedia/tabs_media.aspx URI. NOTE: The vendor disputes the report because the researcher did not configure the media library permissions correctly. The vendor states that by default all users can read/modify/upload files, and it’s up to the administrator to decide who should have access to the media library and set the permissions accordingly. See the vendor documentation in the references for more information

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refdevnet.kentico.com/download/hotfixesRefdocs.kentico.com/k12/configuring-kentico/configuring-the-environment-for-content-editors/configuring-media-libraries/assigning-permissions-to-media-librariesRefdocs.kentico.com/k12/release-notes-kentico-12GitHubgithub.com/Gr4y21/My-CVE-IDs/blob/master/Kentico%20CMS%20Unauthenticated%20File%20Upload%20and%20File%20ExposureRefdevnet.kentico.com/download/hotfixesRefdocs.kentico.com/k12/configuring-kentico/configuring-the-environment-for-content-editors/configuring-media-libraries/assigning-permissions-to-media-librariesRefdocs.kentico.com/k12/release-notes-kentico-12GitHubgithub.com/Gr4y21/My-CVE-IDs/blob/master/Kentico%20CMS%20Unauthenticated%20File%20Upload%20and%20File%20Exposure

How CyberStrike helps

Frequently asked questions

What is CVE-2019-12102?

CVE-2019-12102 is a critical-severity vulnerability. It was published on May 22, 2019 and has a CVSS 3.0 base score of 9.1 (CRITICAL).

How severe is CVE-2019-12102?

This vulnerability has a CVSS 3.0 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-12102?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2019-12102?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-12102 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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