CVE-2026-4635 Persistent notification timing attack causing server denial of service

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to archive the channel before removing persistent notifications which allows authenticated user to crash the server via timing the creation of persistent notification message between the server deleting...

CVE-2026-4635

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to archive the channel before removing persistent notifications which allows authenticated user to crash the server via timing the creation of persistent notification message between the server deleting...

EUVD-2026-31429

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate file ownership and access control, which allows an authenticated user to access and download files belonging to other users or teams via crafted Boards API requests using valid file IDs...

CVE-2026-3473 Improper file ownership validation in the Boards API allows unauthorised file access

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate file ownership and access control, which allows an authenticated user to access and download files belonging to other users or teams via crafted Boards API requests using valid file IDs...

EUVD-2026-31427

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.2, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate the TIFF IFD offset in the image header before allocating memory, which allows authenticated users with file upload or posting permissions to cause a denial of service serve...

CVE-2026-5755 Denial of service via crafted TIFF file upload

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.2, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate the TIFF IFD offset in the image header before allocating memory, which allows authenticated users with file upload or posting permissions to cause a denial of service serve...

CVE-2026-3481

The WP Blockade plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'shortcode' parameter in all versions up to and including 0.9.14. This is due to insufficient input sanitization and output escaping in the rendershortcodepreview function. The function receives user inpu...

CVE-2026-3481

The WP Blockade plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'shortcode' parameter in all versions up to and including 0.9.14. This is due to insufficient input sanitization and output escaping in the rendershortcodepreview function. The function receives user inpu...

EUVD-2026-31407

The WP Blockade plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'shortcode' parameter in all versions up to and including 0.9.14. This is due to insufficient input sanitization and output escaping in the rendershortcodepreview function. The function receives user inpu...

CVE-2026-3481 WP Blockade <= 0.9.14 - Reflected Cross-Site Scripting via 'shortcode' Parameter

The WP Blockade plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'shortcode' parameter in all versions up to and including 0.9.14. This is due to insufficient input sanitization and output escaping in the rendershortcodepreview function. The function receives user inpu...

CVE-2026-39827

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for...

PT-2026-42793

Insufficient logging in the entry export feature in Devolutions Server allows an authenticated user with export permissions to export a sealed entry without triggering the unseal notification to administrators via a crafted export request. This issue affects : Devolutions Server 2026.1.6.0 throug...

Linux Distros Unpatched Vulnerability : CVE-2026-28376

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The Grafana Live push endpoint can be exploited to cause unbounded memory allocation by sending a large or streaming request body, potentially leading to...

PT-2026-42818

TypeBot is a chatbot builder tool. Versions 3.15.2 and prior contain an SSRF via Open Redirect Bypass as the HTTP Request block and Code block validate the initial request URL via validateHttpReqUrl to block private IPs and cloud metadata hostnames. However, the HTTP clients ky and fetch follow 3...

Mantis Bug Tracker 跨站脚本漏洞

Mantis Bug Tracker MantisBT is an open-source bug tracker developed by Mantis Bug Tracker. Versions 2.11.0 to 2.28.1 of Mantis Bug Tracker contain a cross-site scripting vulnerability. This vulnerability stems from allowing any authenticated user to inject arbitrary HTML through the update accoun...

PT-2026-42785

Improper access control in the entry activity log feature in Devolutions Server allows an authenticated user with access to an entry but without the required permission to retrieve that entry's activity logs via a crafted API request. This issue affects : Devolutions Server 2026.1.6.0 through...

Unity Linux 20.1060e / 20.1070e Security Update: grafana (UTSA-2026-016678)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016678 advisory. Grafana is an open-source platform for monitoring and observability. In affected versions an attacker could serve HTML content thru the Grafana datasource or plugin...

Linux Distros Unpatched Vulnerability : CVE-2026-6073

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - GitLab has remediated an issue in GitLab EE affecting all versions from 18.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allow...

Linux Distros Unpatched Vulnerability : CVE-2026-28383

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A request to the Grafana plugin resources endpoint can cause unbounded memory allocation by reading the entire request body into memory. An authenticated user c...

GHSA-G7XP-JF3X-WCX4 Concrete CMS is vulnerable to missing authorization in the bulk_user_assignment.php

Concrete CMS 9.5.0 and below is vulnerable to missing authorization in the bulkuserassignment.php which can lead to privilege escalation to Administrative Group. Any authenticated user with access to the bulk user assignment dashboard page can add any user email to any group and can remove...