CVE-2023-33177

HIGH EPSS 93.4%
Published May 30, 20233y ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
High
Find Similar
Published May 30, 2023 3y ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
93.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

Affected Products 2

VendorProductVersionRange
xibosignagexibo*≥1.8.0  –  <2.3.17
xibosignagexibo*≥3.0.0  –  <3.3.5

References 5

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

Remediation

  • github.com https://github.com/xibosignage/xibo-cms/commit/1cbba380fa751a00756e70d7b08b5c6646092658
    Patch
  • github.com https://github.com/xibosignage/xibo-cms/commit/45c6b53c3978639db03b63270a56f4397f49b2c9
    Patch
  • github.com https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-jj27-x85q-crqv
    PatchVendor Advisory