CVE-2023-33177
HighCVSS 8.8Exploitation Probability (EPSS)
Very high risk93th percentile - higher than 93% of all known CVEs
Summary
A path traversal vulnerability exists in the Xibo CMS that allows an authenticated user to upload a specially crafted zip file. This can lead to the creation of files outside the CMS library directory, enabling remote code execution.
Risk Assessment
This vulnerability poses a serious security risk, allowing attackers to upload malicious software and gain access to the system as the webserver user.
Recommendation
It is recommended to upgrade to version 2.3.17 or 3.3.5, which fix this issue. Customers using Xibo Signage have already received an upgrade or patch to resolve this issue.
Other vulnerabilities in Xibo CMS
See all- CVE-2026-42141High
Xibo is an open source digital signage platform that prior to version 4.4.1 had a Server-Side Request Forgery (SSRF) vulnerability. This allows users with Library upload permissions to make arbitrary HTTP requests from the CMS server to network resources.
- CVE-2026-42558High
Xibo CMS prior to version 4.4.2 contains a vulnerability chain of Stored XSS and Iframe Sandbox escape. Users with DataSet permissions can use the Data Connector to craft messages that escape the sandbox and enable XSS.
- CVE-2023-33181Medium
Xibo is a content management system (CMS) that in versions from 3.0.0 to 3.3.5 reveals sensitive information by printing stack traces when certain API routes are called with missing or invalid parameters. Users should upgrade to version 3.3.5, which fixes this issue.
- CVE-2023-33180Medium
An SQL injection vulnerability was discovered in the Xibo content management system in the `/display/map` API route, affecting versions from 3.2.0 to 3.3.2. This allows an authenticated user to exfiltrate data from the Xibo database by injecting specially crafted values into the `bounds` parameter.
- CVE-2023-33179Medium
An SQL injection vulnerability was discovered in the `nameFilter` function in the Xibo content management system, affecting versions from 3.2.0 to 3.3.5. This allows an authenticated user to exfiltrate data from the Xibo database by injecting specially crafted values for logical operators.
- CVE-2023-33178Medium
An SQL injection vulnerability was discovered in the Xibo content management system in the `/dataset/data/{id}` API. This allows an authenticated user to exfiltrate data from the Xibo database by injecting specially crafted values into the `filter` parameter.
Original NVD description (English source)
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.