GHSA-5955-cwv4-h7qh CVE-2024-48927
Umbraco has a Potential Code Execution Risk When Viewing SVG Files in Full Screen in Backoffice
- Severity
- 4.6 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 0.47%
- Chance of exploitation in the next 30 days. Higher than 40.42% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
- Fix
- Available
- 2 packages have a fixed version
Description
Impact
There is a potential risk of code execution for Backoffice users when they “preview” SVG files in full screen mode.
Workarounds
Server-side file validation is available to strip script tags from file's content during the file upload process.
Affected versions
NuGet
| Package | Vulnerable | Fixed in |
|---|---|---|
| Umbraco.Cms | >= 10.0.0, < 10.8.7 |
10.8.7 |
| Umbraco.Cms | >= 13.0.0, < 13.5.2 |
13.5.2 |
| UmbracoCms | >= 8.0.0, < 8.18.15 |
8.18.15 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
Umbraco.Cms NuGet → 10.8.7
- dotnet
dotnet add package Umbraco.Cms --version 10.8.7
UmbracoCms NuGet → 8.18.15
- dotnet
dotnet add package UmbracoCms --version 8.18.15
Severity breakdown
CVSS 3.1 4.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Weakness
CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
How to prevent it
- Requirements: Programming languages and supporting technologies might be chosen which are not subject to these issues.
- Implementation: Utilize an appropriate mix of allowlist and denylist parsing to filter control-plane syntax from all input.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-wr57-hqmp-fgvh Umbraco: Delivery API leaks protected (Public Access) content through Content Picker / Multi-Node Tree Picker expansion | High | Also affects Umbraco.Cms |
| GHSA-vr9v-27gg-qgx4 Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog | Medium | Also affects Umbraco.Cms |
| GHSA-2qjj-h6wp-c7h7 Umbraco.Cms: Open Redirect Vulnerability in Surface Controllers | Medium | Also affects Umbraco.Cms |
| GHSA-rhcg-3h8r-v6vp Umbraco Affected by Vertical Privilege Escalation via Missing Authorization Checks | High | Also affects Umbraco.Cms |
| GHSA-vrqc-59mw-qqg7 Umbraco has Stored XSS in UFM Rendering Pipeline via Permissive DOMPurify Attribute Filtering | Medium | Also affects Umbraco.Cms |
| GHSA-fpvf-fvp5-996r Umbraco Backoffice API Allows Unauthorized Modification of Domain Data | Medium | Also affects Umbraco.Cms |
| GHSA-54mj-vcvj-q3v5 Umbraco CMS has an arbitrary file upload vulnerability | Critical | Also affects Umbraco.Cms |
| GHSA-hfv2-pf68-m33x Umbraco Vulnerable to Improper File Access and Credential Exposure in Dictionary Import Functionality | Medium | Also affects Umbraco.Cms |
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