CVE-2023-33177
Xibo CMS vulnerable to Remote Code Execution through Zip Slip
Basic Information
- CVE State
- PUBLISHED
- Reserved Date
- May 17, 2023
- Published Date
- May 30, 2023
- Last Updated
- June 17, 2025
- Vendor
- xibosignage
- Product
- xibo-cms
- 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 Scores
CVSS v3.1
8.8 - HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC Information
- Exploitation
- none
- Technical Impact
- total
Exploit Status
- Exploited in the Wild
- Yes (2025-11-17 15:00:08 UTC) Source
References
https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-jj27-x85q-crqv
https://github.com/xibosignage/xibo-cms/commit/1cbba380fa751a00756e70d7b08b5c6646092658
https://github.com/xibosignage/xibo-cms/commit/45c6b53c3978639db03b63270a56f4397f49b2c9
https://claroty.com/team82/disclosure-dashboard
https://xibosignage.com/blog/security-advisory-2023-05/
Known Exploited Vulnerability Information
| Source | Added Date |
|---|---|
| The Shadowserver (via CIRCL) | 2025-11-17 15:00:08 UTC |
Timeline
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CVE ID Reserved
-
CVE Published to Public
-
Added to KEVIntel