CVE-2025-48953
Last modified
CVE-2025-48953 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Umbraco is an ASP.NET content management system (CMS). Starting in version 14.0.0 and prior to versions 15.4.2 and 16.0.0, it's possible to upload a file that doesn't adhere with the configured allowable file extensions via a manipulated API request. EPSS estimates a 0.16% chance of exploitation in the next 30 days.
Description
Umbraco is an ASP.NET content management system (CMS). Starting in version 14.0.0 and prior to versions 15.4.2 and 16.0.0, it's possible to upload a file that doesn't adhere with the configured allowable file extensions via a manipulated API request. The issue is patched in versions 15.4.2 and 16.0.0. No known workarounds are available.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Umbraco | Umbraco Cms | >= 14.0.0, < 15.4.2 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-48953?
How severe is CVE-2025-48953?
How do I fix CVE-2025-48953?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-48948Navidrome is an open source web-based music collection serve…6.5
- CVE-2025-48949Navidrome is an open source web-based music collection serve…9.8
- CVE-2025-4895A vulnerability, which was classified as critical, has been …9.8
- CVE-2025-48950MaxKB is an open-source AI assistant for enterprise. Prior t…8.8
- CVE-2025-48951Auth0-PHP is a PHP SDK for Auth0 Authentication and Manageme…9.3
- CVE-2025-48952NetAlertX is a network, presence scanner, and alert framewor…9.4
- CVE-2025-48954Discourse is an open-source discussion platform. Versions pr…6.1
- CVE-2025-48955Para is a multitenant backend server/framework for object pe…6.2
- CVE-2025-48956vLLM is an inference and serving engine for large language m…7.5
- CVE-2025-48957AstrBot is a large language model chatbot and development fr…7.5
- CVE-2025-48958Froxlor is open source server administration software. Prior…5.4
- CVE-2025-48959Local privilege escalation due to insecure file permissions.…6.7
Are you affected by CVE-2025-48953?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST