CVE-2026-87928

MaxSite CMS 0.94 through 109.6 HTML Upload XSS via admin_page

Published Sep 9, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Maxsite
Maxsite maxsite Cms
Vendors & Products Maxsite
Maxsite maxsite Cms
Type Values Removed Values Added
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.
Title MaxSite CMS 0.94 through 109.6 HTML Upload XSS via admin_page
First Time appeared Max-3000
Max-3000 maxsite Cms
Weaknesses CWE-434
CPEs cpe:2.3:a:max-3000:maxsite_cms:*:*:*:*:*:*:*:*
Vendors & Products Max-3000
Max-3000 maxsite Cms
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 24, 2026, 2:21 PM
Reserved
Sep 9, 2026, 4:12 PM
Status
Deferred
Published
Sep 9, 2026, 5:17 PM
Modified
Sep 18, 2026, 6:17 PM