CVE-2026-39963 Serendipity: Host Header Injection enables authentication cookie scoping to an attacker-controlled domain

Serendipity is a PHP-powered weblog engine. In versions 2.6-beta2 and below, the serendipitysetCookie function in include/functionsconfig.inc.php uses $SERVER'HTTPHOST' without validation as the domain parameter of setcookie. An attacker who can influence the Host header at login time, such as vi...

CVE-2026-39963

The CVE describes a vulnerability in Serendipity (PHP weblog engine) where the function serendipity_setCookie() in include/functions_config.inc.php uses $_SERVER['HTTP_HOST'] as the cookie domain without validation for versions 2.6-beta2 and earlier. An attacker who can influence the Host header ...

CVE-2026-39963

Serendipity is a PHP-powered weblog engine. In versions 2.6-beta2 and below, the serendipitysetCookie function in include/functionsconfig.inc.php uses $SERVER'HTTPHOST' without validation as the domain parameter of setcookie. An attacker who can influence the Host header at login time, such as vi...

CVE-2026-39963 Serendipity: Host Header Injection enables authentication cookie scoping to an attacker-controlled domain

Serendipity is a PHP-powered weblog engine. In versions 2.6-beta2 and below, the serendipitysetCookie function in include/functionsconfig.inc.php uses $SERVER'HTTPHOST' without validation as the domain parameter of setcookie. An attacker who can influence the Host header at login time, such as vi...

CVE-2026-39963 Serendipity: Host Header Injection enables authentication cookie scoping to an attacker-controlled domain

Serendipity is a PHP-powered weblog engine. In versions 2.6-beta2 and below, the serendipitysetCookie function in include/functionsconfig.inc.php uses $SERVER'HTTPHOST' without validation as the domain parameter of setcookie. An attacker who can influence the Host header at login time, such as vi...

CVE-2026-31940

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicchacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and...

CVE-2026-31940

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicchacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and...

EUVD-2026-21522

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicchacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and...

CVE-2026-31940

CVE-2026-31940 affects Chamilo LMS prior to versions 1.11.38 and 2.0.0-RC.3. In the affected code path main/lp/aicc_hacp.php, user-controlled request parameters are directly used to set the PHP session ID before the global bootstrap loads, enabling session fixation. The vulnerability arises from ...

CVE-2026-31940 Session Fixation in Chamilo LMS

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicchacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and...

CVE-2026-31940 Session Fixation in Chamilo LMS

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicchacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and...

CVE-2026-31940

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicchacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and...

CVE-2026-31940 Session Fixation in Chamilo LMS

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicchacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and...

Chamilo LMS 授权问题漏洞

Chamilo LMS is an open-source online learning and collaboration system developed by Chamilo. This system supports the creation of teaching content, remote training, and online quizzes. Versions of Chamilo LMS prior to 1.11.38 and 2.0.0-RC.3 contained vulnerabilities related to authorization. Thes...

PT-2026-32000

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicc hacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and...

org.apache.tomcat/tomcat-catalina: tomcat: Apache Tomcat: session fixation via rewrite valve

A session fixation vulnerability has been identified in Apache Tomcat, affecting its rewrite functionality. If the rewrite valve is enabled for a web application, an attacker can craft a specific URL. If a victim clicks on this malicious URL, their subsequent interaction with the resource will...

HCL Aftermarket DPC Session Fixation Vulnerability

HCL Aftermarket DPC is a digital spare parts and aftermarket management platform for HCL India. HCL Aftermarket DPC suffers from a session fixation vulnerability that can be exploited by an attacker to take over a user's session and conduct unauthorized transactions...

Session Fixation

Overview mcp is a The official Ruby SDK for Model Context Protocol servers and clients Affected versions of this package are vulnerable to Session Fixation through the storestreamforsession process in lib/mcp/server/transports/streamablehttptransport.rb. An attacker can intercept all subsequent...

CVE-2025-55266

HCL Aftermarket DPC is affected by Session Fixation which allows attacker to takeover the user's session and use it carry out unauthorized transaction behalf of the user...

EUVD-2026-16581

Bludit allows user's session identifier to be set before authentication. The value of this session ID stays the same after authentication. This behavior enables an attacker to fix a session ID for a victim and later hijack the authenticated session. This issue was fixed in version 3.17.2...