CVE-2026-18478
MediumCVSS 5.1Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
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.
Risk Assessment
Risk of malicious script execution in an administrator's browser, potentially leading to session theft or account takeover.
Recommendation
It is recommended to update to version 6.3.10 or later, which includes the fix.
Original NVD description (English source)
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