CVE-2026-70552
MaxSite CMS 109.5 Unauthenticated AJAX Dispatcher Bypass via ajax.php
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
MaxSite CMS 109.5 and earlier contains an authentication bypass vulnerability in the AJAX dispatcher that allows unauthenticated attackers to access admin-gated endpoints by supplying any X-Requested-With header and requesting a base64-encoded path resolving to any *-ajax.php file in the codebase. Attackers can exploit this dispatcher bypass to reach privileged plugin endpoints without credentials, enabling actions such as manipulating poll states and vote counts, and amplifying the impact of any dangerous operation performed by admin-only ajax files across the plugin tree.
| CWE | CWE-306 |
| Vendor | maxsite |
| Product | maxsite cms |
| Published | Aug 4, 2026 |
| Last Updated | Aug 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
MaxSite / MaxSite CMS
0.78 ≤ 109.5
References
Credits
🔍 Amir Aliu & Enrik Mustafa