CVE-2023-43876-October-CMS-Reflected-XSS---Installation

October CMS Reflected XSS v3.4.16 Author: Sergio Description: Cross-Site Scripting XSS vulnerabilitiy in installation of October v.3.4.16 allows a local attacker to execute arbitrary web scripts via a crafted payload injected into the dbhost field. Attack Vectors: A vulnerability in the...

CVE-2021-32648

CVE-2021-32648 Patch your code for October CMS Auth Bypass CVE-2021-32648 Instructions 1. Open the file vendor/october/rain/src/Auth/Models/User.php 2. Perform the patch found in these diff notes 3. Save the file Overview You are converting a loose comparison to a strict comparison by replacing t...

CVE-2026-49400

October System provides the system module for October Content Management System. Prior to versions 3.7.17 and 4.2.21, the backend SessionMaker trait stored widget session state as base64serialize... and consumed it with unserialize without an allowedclasses restriction. Any code path that could...

October CMS: Incomplete Scheme Validation in Image Resizer

The image resizer classified external sources by testing whether the source string began with the substring http, and the string-source branch in ResizeImageItem::fromObject accepted any value containing :// as a URL. As a result, non-https PHP stream wrappers such as phar://, file:// and ftp://...

EUVD-2026-77682

October System provides the system module for October Content Management System. Prior to versions 3.7.17 and 4.2.21, the backend SessionMaker trait stored widget session state as base64serialize... and consumed it with unserialize without an allowedclasses restriction. Any code path that could...

CVE-2026-49400 October CMS: PHP Object Injection via Backend Widget Session Storage

October System provides the system module for October Content Management System. Prior to versions 3.7.17 and 4.2.21, the backend SessionMaker trait stored widget session state as base64serialize... and consumed it with unserialize without an allowedclasses restriction. Any code path that could...

CVE-2026-49400

October CMS (System module) prior to v3.7.17 and v4.2.21 is affected by a PHP object injection vulnerability in the backend SessionMaker trait, which stored widget session state as base64(serialize(...)) and deserialized it with unserialize() without an allowed_classes restriction. Exploitation r...

CVE-2026-49400 October CMS: PHP Object Injection via Backend Widget Session Storage

October System provides the system module for October Content Management System. Prior to versions 3.7.17 and 4.2.21, the backend SessionMaker trait stored widget session state as base64serialize... and consumed it with unserialize without an allowedclasses restriction. Any code path that could...

October CMS: PHP Object Injection via Backend Widget Session Storage

The backend SessionMaker trait stored widget session state as base64serialize... and consumed it with unserialize without an allowedclasses restriction. Any code path that could write to a widget. session key with attacker-controlled bytes could trigger PHP object injection the next time the widg...

CVE-2026-46696

CVE-2026-46696 affects October CMS (system module) versions prior to 3.7.17 and 4.2.21 . A chained bypass in the Twig sandbox security policy occurs when cms.safe_mode is enabled: the Laravel session store was exposed to Twig with unrestricted method access, and raw SQL methods reachable through ...

CVE-2026-46696 October CMS: Safe Mode Sandbox Bypass via Session Store and Forwarded Builder Calls

October System provides the system module for October Content Management System. Versions prior to 3.7.17 and 4.2.21 have a vulnerability in the Twig sandbox security policy that allowed a chained bypass when cms.safemode is enabled. The Laravel session store was exposed to Twig with unrestricted...

EUVD-2026-77673

October System provides the system module for October Content Management System. Versions prior to 3.7.17 and 4.2.21 have a vulnerability in the Twig sandbox security policy that allowed a chained bypass when cms.safemode is enabled. The Laravel session store was exposed to Twig with unrestricted...

CVE-2026-46696 October CMS: Safe Mode Sandbox Bypass via Session Store and Forwarded Builder Calls

October System provides the system module for October Content Management System. Versions prior to 3.7.17 and 4.2.21 have a vulnerability in the Twig sandbox security policy that allowed a chained bypass when cms.safemode is enabled. The Laravel session store was exposed to Twig with unrestricted...

October CMS: Safe Mode Sandbox Bypass via Session Store and Forwarded Builder Calls

A vulnerability was identified in the Twig sandbox security policy that allowed a chained bypass when cms.safemode is enabled. The Laravel session store was exposed to Twig with unrestricted method access, and raw SQL methods reachable through Eloquent's call forwarding were not blocked across th...

CVE-2026-22692

CVE-2026-22692: Critical Twig Sandbox Bypass via collect-mapInto allowing RCE/LFI/XXE October CMS Overview...

CVE-2026-27937

October is a Content Management System CMS and web platform. Prior to 3.7.16 and 4.1.16, a reflected Cross-Site Scripting XSS vulnerability was identified in the backend DataTable widget where a query parameter was rendered without proper output escaping. This vulnerability is fixed in 3.7.16 and...

CVE-2026-24907

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting XSS vulnerability in the Event Log mail preview feature. When viewing logged mail messages, HTML content was rendered in an iframe without proper sandboxing,...

CVE-2026-26274

October is a Content Management System CMS and web platform. Prior to 3.7.14 and 4.1.10, a vulnerability was identified in the Twig sandbox security policy that allowed database write operations when cms.safemode is enabled. Backend users with Developer permissions could use Twig template markup ...

CVE-2026-26067

October is a Content Management System CMS and web platform. Prior to 3.7.14 and 4.1.10, a server-side information disclosure vulnerability was identified in the handling of CSS preprocessor files. Backend users with Editor permissions could craft .less, .sass, or .scss files that leverage the...

October CMS: Reflected XSS via DataTable Form Widget

A reflected Cross-Site Scripting XSS vulnerability was identified in the backend DataTable widget where a query parameter was rendered without proper output escaping. Impact - Reflected XSS only, no stored/persistent component - The backend URL prefix is customizable and must be known or guessed ...