Umbraco CMS
57 CVEs tracked. None of them is in CISA KEV.
This hub aggregates every CVE we track for Umbraco CMS, a product in the web cms plugins space. Use it to gauge the current risk picture and drill into individual advisories.
Umbraco CMS CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 5 |
| 2024-11 | 1 |
| 2024-12 | 0 |
| 2025-01 | 3 |
| 2025-02 | 0 |
| 2025-03 | 2 |
| 2025-04 | 1 |
| 2025-05 | 1 |
| 2025-06 | 2 |
| 2025-07 | 1 |
| 2025-08 | 1 |
| 2025-09 | 0 |
| 2025-10 | 0 |
| 2025-11 | 0 |
| 2025-12 | 2 |
| 2026-01 | 1 |
| 2026-02 | 0 |
| 2026-03 | 3 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 2 |
| 2026-07 | 0 |
| 2026-08 | 0 |
| 2026-09 | 0 |
Severity
How the 57 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical4
- High8
- Medium40
- Low4
Latest CVEs
The 15 most recently published vulnerabilities affecting Umbraco CMS.
- CVE-2026-46609Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog4.6
- CVE-2026-46616Umbraco.Cms: Open Redirect Vulnerability in Surface Controllers5.4
- CVE-2026-31834Umbraco Affected by Vertical Privilege Escalation via Missing Authorization Checks7.2
- CVE-2026-31833Umbraco has Stored XSS in UFM Rendering Pipeline via Permissive DOMPurify Attribute Filtering6.7
- CVE-2026-31832Umbraco Backoffice API Allows Unauthorized Modification of Domain Data5.4
- CVE-2021-47776Umbraco v8.14.1 - 'baseUrl' SSRF5.3
- CVE-2025-67288An arbitrary file upload vulnerability in Umbraco CMS v16.3.3 allows attackers to execute arbitrary code by uploading a crafted PDF file. NOTE: this is disputed by the Supplier because the responsi...10.0
- CVE-2025-66625Umbraco Vulnerable to Improper File Access and Credential Exposure through Dictionary Import Functionality4.9
- CVE-2012-10054Umbraco CMS < 4.7.1 codeEditorSave.asmx RCE9.8
- CVE-2025-54425Umbraco's Delivery API allows for cached requests to be returned with an invalid API key5.3
- CVE-2025-49147Umbraco.Cms Vulnerable to Disclosure of Configured Password Requirements5.3
- CVE-2025-48953Umbraco Vulnerable to By-Pass of Configured Allowed Extensions for File Uploads5.5
- CVE-2025-46736Umbraco Makes User Enumeration Feasible Based on Timing of Login Response5.3
- CVE-2025-32017Umbraco has a Management API Vulnerability to Path Traversal With Authenticated Users8.8
- CVE-2025-27602Umbraco Allows a Restricted Editor User to Delete Media Item or Access Unauthorized Content4.9
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