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TI-2023-16354 Aliases CVE-2023-33177

Xibo CMS vulnerable to Remote Code Execution through Zip Slip

Priority MEDIUM 50CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.07036 94th percentileScored 2026-11-07
Fix Fixed xibo-cms (xibosignage): 2.3.17, 3.3.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
xibosignagexibo-cms1.8.0 to before 2.3.17; 3.0.0 to before 3.3.52.3.17, 3.3.5Patch availableCNA
  • xibo-cms Vendorxibosignage Affected 1.8.0 to before 2.3.17; 3.0.0 to before 3.3.5 Fixed in 2.3.17, 3.3.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:xibosignage:xibo:*:*:*:*:*:*:*:*1.8.0 to before 2.3.17; 3.0.0 to before 3.3.5Vulnerablexibosignage
  • cpe:2.3:a:xibosignage:xibo:*:*:*:*:*:*:*:* Versions 1.8.0 to before 2.3.17; 3.0.0 to before 3.3.5 Vulnerable ·xibosignage

Remediation

  • Fix · CNA xibo-cms (xibosignage) Fixed in 2.3.17, 3.3.5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-33177

References

Patch 3

Advisory 2

  • TI-2013-05097 Directory traversal vulnerability in Spring Signage Xibo 1.2.x before 1.2.3 and 1.4.x… CVSS 2.0MEDIUM 5.0
  • TI-2024-27847 Xibo allows Sensitive Information Disclosure abusing SQL Injection in Xibo CMS DataSet Data Import CVSS 3.1HIGH 8.1
  • TI-2025-38637 Xibo CMS: Remote Code Execution through module templates CVSS 3.1HIGH 7.2
  • TI-2026-24496 Xibo CMS API has SQL Injection via DataSet Filter Parameter CVSS 3.1HIGH 8.1
  • TI-2013-04290 SQL injection vulnerability in index.php in Digital Signage Xibo 1.4.2 allows remote… CVSS 2.0HIGH 7.5
  • TI-2013-04292 Multiple cross-site request forgery (CSRF) vulnerabilities in index.php in Digital… CVSS 2.0MEDIUM 6.8
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences