CVE-2026-87928
Medium
Description
MaxSite CMS versions 0.94 through 109.6 contain a cross-site scripting vulnerability in the admin_page upload handler that allows any logged-in user to upload HTML files. Attackers can upload HTML containing malicious scripts to the uploads/_pages/ directory, which executes in visitors' browsers when the file is accessed, enabling persistent stored cross-site scripting attacks.
SeverityMedium
CVSS5.4
Exploit probability—
Product
MaxSite CMS
PublishedSep 9, 2026
First seenSep 9, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| MaxSite MaxSite CMS | 0.94 ≤ v ≤ 109.6 | — |
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