Unrestricted file upload in Kentico Xperience
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.
Summary
Kentico Xperience before 13.0.178 has a specific set of allowed ContentUploader file extensions for unauthenticated uploads; however, because .zip is processed through TryZipProviderSafe, there is additional functionality to create files with other extensions. NOTE: this is a separate issue not necessarily related to SVG or XSS.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Xperience (Kentico) Fixed in 13.0.178
Timeline
- 2026-10-02 Threatist record created from CVE-2025-32370
- 2026-10-03 Alias added: GHSA-vc28-9jgm-3qpx
References
More Kentico Xperience vulnerabilities
- TI-2025-02400 Kentico Xperience <= 13.0.178 Staging Sync Server None Password Type Authentication Bypass KEVCVSS 3.1CRITICAL 9.8
- TI-2025-02399 Kentico Xperience <= 13.0.172 Staging Sync Server Digest Password Authentication Bypass KEVCVSS 3.1CRITICAL 9.8
- TI-2019-07394 An issue was discovered in Kentico 12.0.x before 12.0.15, 11.0.x before 11.0.48, 10.0.x… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-02402 Kentico Xperience <= 13.0.178 Staging Media File Upload Authenticated RCE KEVCVSS 3.1HIGH 7.2
- TI-2017-12981 Kentico 9.0 before 9.0.51 and 10.0 before 10.0.48 allows remote attackers to obtain… CVSS 3.0CRITICAL 9.8
- TI-2025-23448 Cross-site scripting in Kentico Xperience CVSS 3.1MEDIUM 6.4
Sources
- CVE-2025-32370 · CVE Program
- CVE-2025-32370 · NVD
- FIRST EPSS
- GHSA-vc28-9jgm-3qpx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences