Arbitrary file upload in Kentico Xperience
CVE-2025-32370
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.015 (73.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: +0.001
Affected products
- Kentico Xperience — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- devnet.kentico.com/download/hotfixes (Release Notes)
- labs.watchtowr.com/xss-to-rce-by-abusing-custom-file-handlers-kentico-xperience… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-32370?
- CVE-2025-32370 is a high-severity vulnerability in Kentico Xperience, classified under Hidden Functionality. CVSS score: 7.2/10. Published 2025-04-06.
- How severe is CVE-2025-32370?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2025-32370 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.