Cloudflare Public Bug Bounty: Second-Order XSS via javascript protocol in MCP Server Portal Apps leads to ATO

The vulnerability in the MCP Server Portal Apps was caused by missing sanitization of the redirecturi parameter, leading to a second-order XSS vulnerability. An attacker could craft a malicious redirecturi containing JavaScript code, obtain a clientid for this URI, and reuse it when a victim had ...

CVE-2025-6514

CVE-2025-6514 affects the mcp-remote npm package (versions 0.0.5–0.1.15); it was fixed in 0.1.16 (released 2025-06-17). The vulnerability causes OS command injection when mcp-remote connects to untrusted MCP servers via crafted input in the authorization_endpoint URL, enabling remote code executi...

CVE-2025-6514 OS command injection in mcp-remote when connecting to untrusted MCP servers

mcp-remote is exposed to OS command injection when connecting to untrusted MCP servers due to crafted input from the authorizationendpoint response URL...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication due to an implementation flaw that allows an invalid object to be processed. An attacker can compromise the integrity of the authentication process by circumventing the client verification mechanism. Remediation...

BIT-MOODLE-2021-32478

The redirect URI in the LTI authorization endpoint required extra sanitizing to prevent reflected XSS and open redirect risks. Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8 and earlier unsupported versions are affected...

keycloak: reflected XSS attack

A reflected cross-site scripting XSS vulnerability was found in the 'oob' OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page. This flaw requires a user or administrator to interact with a link in order to be...

keycloak: reflected XSS attack

A reflected cross-site scripting XSS vulnerability was found in the 'oob' OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page. This flaw requires a user or administrator to interact with a link in order to be...

CVE-2023-22341

On version 14.1.x before 14.1.5.3, and all versions of 13.1.x, when the BIG-IP APM system is configured with all the following elements, undisclosed requests may cause the Traffic Management Microkernel TMM to terminate: An OAuth Server that references an OAuth Provider An OAuth profile with the...

CVE-2023-22341 BIG-IP APM OAuth vulnerability

On version 14.1.x before 14.1.5.3, and all versions of 13.1.x, when the BIG-IP APM system is configured with all the following elements, undisclosed requests may cause the Traffic Management Microkernel TMM to terminate: An OAuth Server that references an OAuth Provider An OAuth profile with the...

Stored XSS via Authorization Endpoint - Safari-Only

None...

CVE-2022-39338 Stored cross site scripting (XSS) vulnerability via Authorization Endpoint in user_oidc

useroidc is an OpenID Connect user backend for Nextcloud. Versions prior to 1.2.1 did not properly validate discovery urls which may lead to a stored cross site scripting attack vector. The impact is limited due to the restrictive CSP that is applied on this endpoint. Additionally this...

CVE-2022-39340 OpenFGA Information Disclosure

OpenFGA is an authorization/permission engine. Prior to version 0.2.4, the streamed-list-objects endpoint was not validating the authorization header, resulting in disclosure of objects in the store. Users openfga/openfga versions 0.2.3 and prior who are exposing the OpenFGA service to the intern...

Open redirect

The redirect URI in the LTI authorization endpoint required extra sanitizing to prevent reflected XSS and open redirect risks. Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8 and earlier unsupported versions are affected...

CVE-2021-32478: Improper Neutralization of Input During Web Page Generation

The redirect URI in the LTI authorization endpoint required extra sanitizing to prevent reflected XSS and open redirect risks. Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8 and earlier unsupported versions are affected...

CVE-2021-32478

The redirect URI in the LTI authorization endpoint required extra sanitizing to prevent reflected XSS and open redirect risks. Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8 and earlier unsupported versions are affected...

CVE-2021-32478

CVE-2021-32478 affects Moodle; the issue is a reflected XSS and open redirect caused by insufficient sanitization of the redirect_uri parameter at the LTI authorization endpoint. Affected versions are Moodle 3.8–3.8.8, 3.9–3.9.6, and 3.10–3.10.3 (and earlier unsupported). Root cause: inadequate s...

ROS-2-845

2.845 Multiple vulnerabilities in Moodle CVE-2021-32472 - CVE-2021-32478 1. Vulnerability Description: CVE-2021-32478 A vulnerability exists due to insufficient cleansing of user-provided data at the LTI authorization endpoint. A remote attacker could trick a victim into clicking a specially...

ROS-2-1246

2.1246 Multiple vulnerabilities in Moodle CVE-2021-32472 - CVE-2021-32478 1. Vulnerability Description: CVE-2021-32478 A vulnerability exists due to insufficient cleansing of user-provided data at the LTI authorization endpoint. A remote attacker could trick a victim into clicking a specially...

Moodle < 3.8.9, 3.9.x < 3.9.7, 3.10.x < 3.10.4 XSS Vulnerability

Moodle is prone to a cross-site scripting XSS vulnerability. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software;...

GitLab Excess Authentication Attempts Improperly Restricted Vulnerability

GitLab is an open source application developed using Ruby on Rails that implements a self-hosted Git project repository that can be accessed through a web interface for public and private projects. An improperly restricted over-authentication attempt vulnerability exists in the GitLab OAuth...