Description

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.

Classification

CVE ID: CVE-2025-32370

CVSS Base Severity: HIGH

CVSS Base Score: 7.2

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L

Affected Products

Vendor: Kentico

Product: Xperience

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.06% (probability of being exploited)

EPSS Percentile: 19.72% (scored less or equal to compared to others)

EPSS Date: 2025-05-05 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-32370
https://devnet.kentico.com/download/hotfixes
https://labs.watchtowr.com/xss-to-rce-by-abusing-custom-file-handlers-kentico-xperience-cms-cve-2025-2748/

Timeline