XSS in Umbraco Umbraco-Cms
CVE-2024-35218
Umbraco CMS is an ASP.NET CMS used by more than 730.000 websites. Stored Cross-site scripting (XSS) enable attackers that have access to backoffice to bring malicious content into a website or application. This vulnerability has been patched in version(s) 8.18.13, 10.8.4, 12.3.7, 13.1.1 by implementing IHtmlSanitizer.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (26.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Umbraco Umbraco-Cms — versions >= 8.0.0, < 8.18.13, >= 10.0.0, < 10.8.4, >= 12.0.0, < 12.3.7
- Umbraco Cms
Weakness classification (CWE)
References
- github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-gvpc-3pj6-4m9w (Vendor Advisory)
- github.com/umbraco/Umbraco-CMS/commit/1b712fe6ec52aa4e71b3acf63e393c8e6ab85385 (Patch)
- github.com/umbraco/Umbraco-CMS/commit/a2684069b1e9976444f60b4b37a80be05b87f6b6 (Patch)
- github.com/umbraco/Umbraco-CMS/commit/cbf9f9bcd199d7ca0412be3071d275556f10b7ba (Patch)
- github.com/umbraco/Umbraco-CMS/commit/d090176272d07500dac0daee7c598aa8bb321050 (Patch)
Frequently asked questions
- What is CVE-2024-35218?
- CVE-2024-35218 is a medium-severity vulnerability in Umbraco Umbraco-Cms, classified under Cross-site Scripting. CVSS score: 4.2/10. Published 2024-05-21.
- How severe is CVE-2024-35218?
- Medium severity. CVSS v3 base score is 4.2 out of 10.