CVE-2026-18478
Medium
Description
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
SeverityMedium
CVSS5.1
Exploit probability—
Product
Magnolia CMS
PublishedAug 10, 2026
First seenAug 10, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- Magnolia DXP Magnolia CMS6.3.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Magnolia DXP Magnolia CMS | 6.3.0 ≤ v < 6.3.10 | 6.3.10 |
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