RCE in Sveltycms
CVE-2026-93505
A vulnerability was found in SveltyCMS 0.0.6. This vulnerability affects unknown code of the file src/utils/media/media-service.server.ts of the component SVG Media Upload. Performing a manipulation results in cross site scripting. The attack can be initiated remotely. The patch is named 05b4f9efeb79e9d72a693232334d7529687f896f. Applying a patch is the recommended action to fix this issue.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (28.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Sveltycms — versions 0.0.6
Weakness classification (CWE)
References
- vuldb.com/vuln/407422 (vdb-entry)
- vuldb.com/vuln/407422/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-93505 (third-party-advisory)
- vuldb.com/submit/942850 (third-party-advisory)
- github.com/SveltyCMS/SveltyCMS/commit/05b4f9efeb79e9d72a693232334d7529687f896f (patch)
- github.com/SveltyCMS/SveltyCMS/ (product)
Frequently asked questions
- What is CVE-2026-93505?
- CVE-2026-93505 is a low-severity vulnerability in Sveltycms, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-09-18.
- How severe is CVE-2026-93505?
- Low severity. CVSS v3 base score is 3.5 out of 10.