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Vulnerability record · CVE-2023-33177 · published 30 May 2023

CVE-2023-33177: Xibosignage xibo path traversal vulnerability

Xibosignage · Xibo

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.

8.8 CVSS 3.1 High EPSS 7.0% · top 6.0% CWE-22 · Path traversal
8.8CVSS 3.1 base score
7.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://claroty.com/team82/disclosure-dashboard Third Party Advisory
https://github.com/xibosignage/xibo-cms/commit/1cbba380fa751a00756e70d7b08b5c6646092658 Patch
https://github.com/xibosignage/xibo-cms/commit/45c6b53c3978639db03b63270a56f4397f49b2c9 Patch
https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-jj27-x85q-crqv PatchVendor Advisory
https://xibosignage.com/blog/security-advisory-2023-05/ Vendor Advisory
https://claroty.com/team82/disclosure-dashboard Third Party Advisory
https://github.com/xibosignage/xibo-cms/commit/1cbba380fa751a00756e70d7b08b5c6646092658 Patch
https://github.com/xibosignage/xibo-cms/commit/45c6b53c3978639db03b63270a56f4397f49b2c9 Patch
https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-jj27-x85q-crqv PatchVendor Advisory
https://xibosignage.com/blog/security-advisory-2023-05/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-33177), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.