XSS in Magnolia Dxp Cms
CVE-2026-18478
Magnolia CMS is vulnerable to Stored XSS in import functionality. An attacker with editor privileges can inject arbitrary HTML and JS into the name of uploaded image, which will be rendered/executed when opening uploaded image. The issue was fixed in version 6.3.10
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
EPSS exploit prediction
EPSS: 0.005 (37.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.1% 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: 0.005 · change: +0.002
Affected products
- Magnolia Dxp Cms — versions 6.3.0
Weakness classification (CWE)
References
- cert.pl/en/posts/2026/08/CVE-2026-18478 (third-party-advisory)
- docs.magnolia-cms.com/product-docs/6.3/releases/release-notes-for-magnolia-cms-… (release-notes)
- www.magnolia-cms.com/ (product)