GHSA-gvpc-3pj6-4m9w
Umbraco CMS Vulnerable to Stored XSS on Content Page Through Markdown Editor Preview Pane
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| NuGet | UmbracoCms.Core | >= 8.0.0, < 8.18.13 | 8.18.13 |
| NuGet | UmbracoCms.Core | >= 10.0.0, < 10.8.4 | 10.8.4 |
| NuGet | UmbracoCms.Core | >= 12.0.0, < 12.3.7 | 12.3.7 |
| NuGet | UmbracoCms.Core | >= 13.0.0, < 13.1.1 | 13.1.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
Stored Cross-site scripting (XSS) enable attackers that have access to backoffice to bring malicious content into a website or application.
### Affected versions
Umbraco CMS >= 8.00
### Patches
This is fixed in 8.18.13, 10.8.4, 12.3.7, 13.1.1 by implementing IHtmlSanitizer
References
External links from the advisory. They lead to third-party sites.
- https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-gvpc-3pj6-4m9w
- https://nvd.nist.gov/vuln/detail/CVE-2024-35218
- https://github.com/umbraco/Umbraco-CMS/commit/1b712fe6ec52aa4e71b3acf63e393c8e6ab85385
- https://github.com/umbraco/Umbraco-CMS/commit/a2684069b1e9976444f60b4b37a80be05b87f6b6
- https://github.com/umbraco/Umbraco-CMS/commit/cbf9f9bcd199d7ca0412be3071d275556f10b7ba
- https://github.com/umbraco/Umbraco-CMS/commit/d090176272d07500dac0daee7c598aa8bb321050
- https://github.com/umbraco/Umbraco-CMS