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CVE-2023-33177

8.8 · HIGH

Xibo is a content management system (CMS).

Published May 30, 2023CWE-22EPSS 7.04%

Overview

CVE-2023-33177 is a high-severity vulnerability. It was published on May 30, 2023 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Xibo is a content management system (CMS). A path traversal vulnerability exists in the Xibo CMS whereby a specially crafted zip file can be uploaded to the CMS via the layout import function by an authenticated user which would allow creation of files outside of the CMS library directory as the webserver user. This can be used to upload a PHP webshell inside the web root directory and achieve remote code execution as the webserver user. Users should upgrade to version 2.3.17 or 3.3.5, which fix this issue. Customers who host their CMS with Xibo Signage have already received an upgrade or patch to resolve this issue regardless of the CMS version that they are running.

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

Refclaroty.com/team82/disclosure-dashboardGitHubgithub.com/xibosignage/xibo-cms/commit/1cbba380fa751a00756e70d7b08b5c6646092658GitHubgithub.com/xibosignage/xibo-cms/commit/45c6b53c3978639db03b63270a56f4397f49b2c9GitHubgithub.com/xibosignage/xibo-cms/security/advisories/GHSA-jj27-x85q-crqvRefxibosignage.com/blog/security-advisory-2023-05/Refclaroty.com/team82/disclosure-dashboardGitHubgithub.com/xibosignage/xibo-cms/commit/1cbba380fa751a00756e70d7b08b5c6646092658GitHubgithub.com/xibosignage/xibo-cms/commit/45c6b53c3978639db03b63270a56f4397f49b2c9GitHubgithub.com/xibosignage/xibo-cms/security/advisories/GHSA-jj27-x85q-crqvRefxibosignage.com/blog/security-advisory-2023-05/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-33177?

CVE-2023-33177 is a high-severity vulnerability. It was published on May 30, 2023 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2023-33177?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-33177?

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-2023-33177?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-33177 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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