EUVD-2026-75110

MaxSite CMS versions 0.94 through 109.6 contain a cross-site scripting vulnerability in the adminpage 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 wh...

EUVD-2026-75109

MaxSite CMS through 109.6 contains a local file inclusion vulnerability in the ajax and require-maxsite dispatchers that allows unauthenticated attackers to execute privileged handler files by supplying base64-encoded path traversal sequences. Attackers can bypass path validation checks and execu...

CVE-2026-87927

MaxSite CMS through version 109.6 contains a local file inclusion vulnerability in the ajax and require-maxsite dispatchers. By supplying base64-encoded path traversal sequences, unauthenticated attackers bypass path validation checks and execute admin-gated handler actions without authentication...

CVE-2026-87927 MaxSite CMS through 109.6 Local File Inclusion via ajax dispatcher

MaxSite CMS through 109.6 contains a local file inclusion vulnerability in the ajax and require-maxsite dispatchers that allows unauthenticated attackers to execute privileged handler files by supplying base64-encoded path traversal sequences. Attackers can bypass path validation checks and execu...

CVE-2026-87927 MaxSite CMS through 109.6 Local File Inclusion via ajax dispatcher

MaxSite CMS through 109.6 contains a local file inclusion vulnerability in the ajax and require-maxsite dispatchers that allows unauthenticated attackers to execute privileged handler files by supplying base64-encoded path traversal sequences. Attackers can bypass path validation checks and execu...

PT-2026-89110

MaxSite CMS through 109.6 passes the ci session cookie to unserialize without class restrictions, allowing unauthenticated attackers to inject PHP objects. Attackers can forge valid session cookies using the hardcoded encryption key to trigger magic methods and corrupt application state or achiev...

CVE-2026-87929: Use of Hard-coded Cryptographic Key

MaxSite CMS through 109.6 ships with a hardcoded session encryption key in application/config/config.php that is never changed during installation, allowing unauthenticated attackers to forge administrator session cookies. Attackers can mint a malicious cisession cookie with administrator...

PT-2026-89107

MaxSite CMS through 109.6 contains a local file inclusion vulnerability in the ajax and require-maxsite dispatchers that allows unauthenticated attackers to execute privileged handler files by supplying base64-encoded path traversal sequences. Attackers can bypass path validation checks and execu...

CVE-2026-87927: Improper Control of Filename for Include/Require Statement in PHP Program

MaxSite CMS through 109.6 contains a local file inclusion vulnerability in the ajax and require-maxsite dispatchers that allows unauthenticated attackers to execute privileged handler files by supplying base64-encoded path traversal sequences. Attackers can bypass path validation checks and execu...

PT-2026-89109

Name of the Vulnerable Software and Affected Versions MaxSite CMS versions prior to 109.7 Description The software contains a hardcoded session encryption key within the application/config/config.php file that remains unchanged after installation. This allows unauthenticated attackers to forge...

CVE-2026-87928: Unrestricted Upload of File with Dangerous Type

MaxSite CMS versions 0.94 through 109.6 contain a cross-site scripting vulnerability in the adminpage 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 wh...

PT-2026-89108

Name of the Vulnerable Software and Affected Versions MaxSite CMS versions 0.94 through 109.6 Description A stored cross-site scripting issue exists in the admin page upload handler. This flaw allows any authenticated user to upload HTML files containing malicious scripts to the uploads/ pages/...

CVE-2026-87930: Deserialization of Untrusted Data

MaxSite CMS through 109.6 passes the cisession cookie to unserialize without class restrictions, allowing unauthenticated attackers to inject PHP objects. Attackers can forge valid session cookies using the hardcoded encryption key to trigger magic methods and corrupt application state or achieve...

Exploit for CVE-2026-70553

CVE-2026-70553 - MaxSite CMS Unauthenticated RCE !CVEhttp...

CVE-2026-70554

MaxSite CMS contains a PHP object injection vulnerability that allows unauthenticated attackers to execute arbitrary code by passing attacker-controlled serialized data in the maxsitecomuser cookie directly to unserialize without validation or class allowlisting. Attackers can craft a malicious...

CVE-2026-70553

MaxSite CMS contains a remote code execution vulnerability that allows unauthenticated attackers to inject arbitrary PHP code into the application configuration file by submitting crafted POST requests to the install endpoint after installation is complete. Attackers can supply a malicious...

CVE-2026-70552

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...

EUVD-2026-52894

MaxSite CMS contains a PHP object injection vulnerability that allows unauthenticated attackers to execute arbitrary code by passing attacker-controlled serialized data in the maxsitecomuser cookie directly to unserialize without validation or class allowlisting. Attackers can craft a malicious...

CVE-2026-70554 MaxSite CMS Unauthenticated PHP Object Injection via maxsite_comuser Cookie

MaxSite CMS contains a PHP object injection vulnerability that allows unauthenticated attackers to execute arbitrary code by passing attacker-controlled serialized data in the maxsitecomuser cookie directly to unserialize without validation or class allowlisting. Attackers can craft a malicious...

CVE-2026-70554 MaxSite CMS Unauthenticated PHP Object Injection via maxsite_comuser Cookie

MaxSite CMS contains a PHP object injection vulnerability that allows unauthenticated attackers to execute arbitrary code by passing attacker-controlled serialized data in the maxsitecomuser cookie directly to unserialize without validation or class allowlisting. Attackers can craft a malicious...