Medium severity5.4NVD Advisory· Published Sep 9, 2026· Updated Sep 18, 2026
CVE-2026-87928
CVE-2026-87928
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Range: 0.94 - 109.6
Patches
Vulnerability mechanics
References
3- github.com/EviL0rd/maxsite-cve2/blob/main/2026.09.08-maxsite-cms-arbitrary-file-write-stored-xss.mdnvd
- github.com/maxsite/cms/blob/2ca0a0c7d1d71106a25dbb0f2aedaaefbf12802c/application/maxsite/admin/plugins/admin_page/uploads-require-maxsite.phpnvd
- www.vulncheck.com/advisories/maxsite-cms-0.94-through-109.6-html-upload-xss-via-admin-pagenvd
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