CVE-2024-53851

Discourse is an open source platform for community discussion. In affected versions the endpoint for generating inline oneboxes for URLs wasn't enforcing limits on the number of URLs that it accepted, allowing a malicious user to inflict denial of service on some parts of the app. This...

CVE-2024-53851 Partial denial of service via inline oneboxes in Discourse

Discourse is an open source platform for community discussion. In affected versions the endpoint for generating inline oneboxes for URLs wasn't enforcing limits on the number of URLs that it accepted, allowing a malicious user to inflict denial of service on some parts of the app. This...

CVE-2024-56328

Discourse is an open source platform for community discussion. An attacker can execute arbitrary JavaScript on users' browsers by posting a maliciously crafted onebox url. This issue only affects sites with CSP disabled. This problem has been patched in the latest version of Discourse. Users are...

CVE-2024-56328

CVE-2024-56328 affects Discourse (onebox URL handling). An attacker can cause the execution of arbitrary JavaScript in a user’s browser by posting a maliciously crafted onebox URL, with impact on sites where CSP is disabled. The root cause is the Onebox URL processing in Discourse that allows inl...

CVE-2024-56328 HTMLi(XSS without CSP) via Onebox urls in Discourse

Discourse is an open source platform for community discussion. An attacker can execute arbitrary JavaScript on users' browsers by posting a maliciously crafted onebox url. This issue only affects sites with CSP disabled. This problem has been patched in the latest version of Discourse. Users are...

CVE-2024-56328 HTMLi(XSS without CSP) via Onebox urls in Discourse

Discourse is an open source platform for community discussion. An attacker can execute arbitrary JavaScript on users' browsers by posting a maliciously crafted onebox url. This issue only affects sites with CSP disabled. This problem has been patched in the latest version of Discourse. Users are...

CVE-2024-56328 HTMLi(XSS without CSP) via Onebox urls in Discourse

Discourse is an open source platform for community discussion. An attacker can execute arbitrary JavaScript on users' browsers by posting a maliciously crafted onebox url. This issue only affects sites with CSP disabled. This problem has been patched in the latest version of Discourse. Users are...

PT-2025-3268 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse affected versions not specified Description: The issue allows an attacker to execute arbitrary JavaScript code in users' browsers by posting a maliciously crafted Onebox URL. This problem only affects sites with Content Security...

Discourse 资源管理错误漏洞

Discourse is an open source community discussion platform from Discourse Open Source. The platform includes community, email, and chat room features. Discourse suffers from a resource management error vulnerability that stems from a URL endpoint that generates an inline onebox without limiting th...

PT-2025-2994 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse versions prior to the latest stable, beta and tests-passed versions Description: The issue is related to the endpoint for generating inline oneboxes for URLs, which did not enforce limits on the number of URLs accepted, allowing a...

PT-2025-3019 · Discourse · Discourse Ai

Name of the Vulnerable Software and Affected Versions: Discourse AI affected versions not specified Description: The issue concerns the Discourse AI plugin, which provides AI features. When sharing conversations from the Discourse AI Bot into posts, HTML entities from the conversation could leak...

BIT-DISCOURSE-2024-37165 Discourse has an XSS via Onebox system

Discourse is an open source discussion platform. Prior to 3.2.3 and 3.3.0.beta3, improperly sanitized Onebox data could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. This vulnerability ...

CVE-2024-37165

Discourse is an open source discussion platform. Prior to 3.2.3 and 3.3.0.beta3, improperly sanitized Onebox data could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. This vulnerability ...

CVE-2024-37165 Discourse has an XSS via Onebox system

Discourse is an open source discussion platform. Prior to 3.2.3 and 3.3.0.beta3, improperly sanitized Onebox data could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. This vulnerability ...

CVE-2024-37165 Discourse has an XSS via Onebox system

Discourse is an open source discussion platform. Prior to 3.2.3 and 3.3.0.beta3, improperly sanitized Onebox data could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. This vulnerability ...

CVE-2024-37165 Discourse has an XSS via Onebox system

Discourse is an open source discussion platform. Prior to 3.2.3 and 3.3.0.beta3, improperly sanitized Onebox data could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. This vulnerability ...

Discourse 安全漏洞

Discourse is an open source community discussion platform from Discourse Open Source. The platform includes features such as communities, email and chat rooms. Discourse has a security vulnerability that stems from not properly cleaning Onebox data...

PT-2024-27349 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse versions prior to 3.2.3 Discourse versions prior to 3.3.0.beta3 Description: The issue arises from improperly sanitized Onebox data, which could lead to an XSS vulnerability in certain situations. This vulnerability only affects...

Discourse 3.3.x < 3.3.0.beta3 Multiple Vulnerabilities

Discourse is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2024 Greenbone AG 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-only CPE = "cpe:/a:discourse:discourse"; ifdescripti...

CVE-2024-35227 Discourse vulnerable to DoS through Onebox

Discourse is an open-source discussion platform. Prior to version 3.2.3 on the stable branch and version 3.3.0.beta3 on the tests-passed branch, Oneboxing against a carefully crafted malicious URL can reduce the availability of a Discourse instance. The problem has been patched in version 3.2.3 o...