CVE-2026-91156 Discourse: Chat MessageBus delivers read-restricted messages to unauthorized users

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, MessageBus audience calculation could deliver messages from a read-restricted category chat channel to an authenticated user who could view the category but was not allowed to use Chat under the...

CVE-2026-110611

REBUILD through 4.5.0 contains an authorization bypass vulnerability in AiBot2Controller /aibot2 endpoints that act on a caller-supplied chatid without verifying ownership. Authenticated low-privilege users can supply another user's chatid to chat-init, chat-delete, chat-feedback, or...

CVE-2026-104748

The SimpleForm – Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.10.0 This is due to the wpajaxnoprivsimpleformwpregister AJAX action lacking any capability check for role...

CVE-2026-92097

The Click to Chat for WhatsApp plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to, and including, 4.44 This is due to the greetingsdialog function building the url template placeholder from a sanitizetextfield-filtered $SERVER'REQUESTURI' on archive pages and th...

CVE-2026-92097 Click to Chat <= 4.44 - Unauthenticated Arbitrary Shortcode Execution via REQUEST_URI via {url} Placeholder

The Click to Chat for WhatsApp plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to, and including, 4.44 This is due to the greetingsdialog function building the url template placeholder from a sanitizetextfield-filtered $SERVER'REQUESTURI' on archive pages and th...

CVE-2026-92097

The Click to Chat for WhatsApp plugin for WordPress (versions up to and including 4.44 ) is vulnerable to Unauthenticated Arbitrary Shortcode Execution . The issue originates in the greetings_dialog() function, which constructs the {url} template placeholder using a sanitize_text_field()-filtered...

EUVD-2026-100770

The Click to Chat for WhatsApp plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to, and including, 4.44 This is due to the greetingsdialog function building the url template placeholder from a sanitizetextfield-filtered $SERVER'REQUESTURI' on archive pages and th...

CVE-2026-110611: Authorization Bypass Through User-Controlled Key

REBUILD through 4.5.0 contains an authorization bypass vulnerability in AiBot2Controller /aibot2 endpoints that act on a caller-supplied chatid without verifying ownership. Authenticated low-privilege users can supply another user's chatid to chat-init, chat-delete, chat-feedback, or...

PT-2026-114161

Name of the Vulnerable Software and Affected Versions n8n versions prior to 1.123.83 n8n versions 2.x prior to 2.41.4 n8n versions 2.42.x prior to 2.42.1 Description A stored cross-site scripting issue exists in the Chat Trigger hosted-chat page. The problem occurs because customCss values are no...

PT-2026-113600

The Click to Chat for WhatsApp plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to, and including, 4.44 This is due to the greetings dialog function building the url template placeholder from a sanitize text field-filtered $ SERVER'REQUEST URI' on archive pages a...

PT-2026-113710

The SimpleForm – Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.10.0 This is due to the wp ajax nopriv simpleform wp register AJAX action lacking any capability check for role...

CVE-2026-110841: Authorization Bypass Through User-Controlled Key

n8n before 2.41.4 and 2.42.0 contains an authorization bypass in the agent chat resume endpoint, which accepts a run identifier from the request body without verifying that the suspended checkpoint belongs to the caller. Authenticated project members can list and read other members' private agent...

CVE-2026-110217

Lenve vhr through commit 03abbd3 contains an information disclosure vulnerability that allows any authenticated user to retrieve other operators' BCrypt password hashes via GET /chat/hrs. Low-privileged operators can collect administrator password hashes, phone numbers, and addresses from the...

CVE-2026-110217 vhr through commit 03abbd3 Information Disclosure of Operator Password Hashes via GET /chat/hrs

Lenve vhr through commit 03abbd3 contains an information disclosure vulnerability that allows any authenticated user to retrieve other operators' BCrypt password hashes via GET /chat/hrs. Low-privileged operators can collect administrator password hashes, phone numbers, and addresses from the...

CVE-2026-110217

The Lenve vhr application (through commit 03abbd3 ) contains an information disclosure vulnerability. This flaw allows any authenticated user to access other operators' BCrypt password hashes by sending a GET request to the /chat/hrs endpoint. Specifically, low-privileged operators can retrieve s...

CVE-2026-110217 vhr through commit 03abbd3 Information Disclosure of Operator Password Hashes via GET /chat/hrs

Lenve vhr through commit 03abbd3 contains an information disclosure vulnerability that allows any authenticated user to retrieve other operators' BCrypt password hashes via GET /chat/hrs. Low-privileged operators can collect administrator password hashes, phone numbers, and addresses from the...

WordPress Click to Chat – HoliThemes plugin <= 4.44 - Unauthenticated Arbitrary Shortcode Execution vulnerability

Unauthenticated Arbitrary Shortcode Execution vulnerability discovered by Kuba in WordPress Plugin Click to Chat versions = 4.44...

CVE-2026-110217: Exposure of Sensitive Information to an Unauthorized Actor

Lenve vhr through commit 03abbd3 contains an information disclosure vulnerability that allows any authenticated user to retrieve other operators' BCrypt password hashes via GET /chat/hrs. Low-privileged operators can collect administrator password hashes, phone numbers, and addresses from the...

CVE-2026-109427

Telegram-Stremio through 5.1.0 contains a broken object-level authorization vulnerability that allows authenticated token holders to access arbitrary chat messages by forging unsigned, unauthenticated stream IDs decoded via encodestring/decodestring functions. Attackers can craft or enumerate...

CVE-2026-109284

Open WebUI from 0.11.0 before 0.11.4 contains an improper authorization vulnerability in the chat fork handler, which places forked chats in the source chat's folder without checking folder write access. Shared folder members downgraded to read-only can call POST /api/v1/chats/id/fork on chats th...