CVE-2026-18478

UNKNOWN 0.0

Stored XSS in Magnolia CMS

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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

CWE	CWE-79
Vendor	magnolia dxp
Product	magnolia cms
Published	Aug 10, 2026

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Affected Versions

Magnolia DXP / Magnolia CMS

6.3.0 < 6.3.10

References

NVD ↗ CVE.org ↗ EPSS Data ↗

cert.pl: https://cert.pl/en/posts/2026/08/CVE-2026-18478 docs.magnolia-cms.com: https://docs.magnolia-cms.com/product-docs/6.3/releases/release-notes-for-magnolia-cms-6.3.10/ magnolia-cms.com: https://www.magnolia-cms.com/

Credits

Kacper Paluch Łukasz Sobański