Discourse Security Breach

Discourse is an open source community discussion platform. The platform includes features such as communities, email and chat rooms. Discourse suffers from a security vulnerability that stems from the use of parameters that allow the injection of arbitrarily large amounts of data...

CVE-2024-27100: Uncontrolled Resource Consumption

Discourse is an open source platform for community discussion. In affected versions the endpoints for suspending users, silencing users and exporting CSV files weren't enforcing limits on the sizes of the parameters that they accept. This could lead to excessive resource consumption which could...

CVE-2024-24748: Exposure of Sensitive Information to an Unauthorized Actor

Discourse is an open source platform for community discussion. In affected versions an attacker can learn that a secret subcategory exists under a public category which has no public subcategories. The issue is patched in the latest stable, beta and tests-passed version of Discourse. Users are...

Discourse Security Breach

Discourse is an open source community discussion platform. The platform includes community, email, and chat room features. A security vulnerability exists in Discourse, which stems from the fact that endpoints used to suspend users, silence users, and export CSV files do not enforce limits on the...

Discourse Security Breach

Discourse is an open source community discussion platform. The platform includes features such as communities, email and chat rooms. Discourse suffers from a security vulnerability. An attacker exploiting the vulnerability could learn about the existence of a secret category when setting a contex...

Discourse Security Breach

Discourse is an open source community discussion platform. The platform includes features such as communities, email and chat rooms. Discourse suffers from a security vulnerability. An attacker exploiting the vulnerability could learn about secret subcategories that exist under public categories...

PT-2024-20593

Name of the Vulnerable Software and Affected Versions Discourse versions prior to the latest stable, beta and tests-passed version Description The issue affects Discourse, an open source platform for community discussion, due to the lack of a rate limit on the "POST /uploads" endpoint. This makes...

CVE-2024-28242: Exposure of Sensitive Information to an Unauthorized Actor

Discourse is an open source platform for community discussion. In affected versions an attacker can learn that secret categories exist when they have backgrounds set. The issue is patched in the latest stable, beta and tests-passed version of Discourse. Users are advised to upgrade. Users unable ...

CVE-2024-24827: Uncontrolled Resource Consumption

Discourse is an open source platform for community discussion. Without a rate limit on the POST /uploads endpoint, it makes it easier for an attacker to carry out a DoS attack on the server since creating an upload can be a resource intensive process. Do note that the impact varies from site to...

BIT-DISCOURSE-2020-24327

Server Side Request Forgery SSRF vulnerability exists in Discourse 2.3.2 and 2.6 via the email function. When writing an email in an editor, you can upload pictures of remote websites...

BIT-DISCOURSE-2021-3138

In Discourse 2.7.0 through beta1, a rate-limit bypass leads to a bypass of the 2FA requirement for certain forms...

BIT-DISCOURSE-2021-32764 YouTube Onebox susceptible to XSS

Discourse is an open-source discussion platform. In Discourse versions 2.7.5 and prior, parsing and rendering of YouTube Oneboxes can be susceptible to XSS attacks. This vulnerability only affects sites which have modified or disabled Discourse's default Content Security Policy. The issue is...

BIT-DISCOURSE-2021-32788 Post creator of a whisper post can be revealed to non-staff users in Discourse

Discourse is an open source discussion platform. In versions prior to 2.7.7 there are two bugs which led to the post creator of a whisper post being revealed to non-staff users. 1: Staff users that creates a whisper post in a personal message is revealed to non-staff participants of the personal...

BIT-DISCOURSE-2021-37633 XSS via d-popover and d-html-popover attribute

Discourse is an open source discussion platform. In versions prior to 2.7.8 rendering of d-popover tooltips can be susceptible to XSS attacks. This vulnerability only affects sites which have modified or disabled Discourse's default Content Security Policy. This issue is patched in the latest...

BIT-DISCOURSE-2021-37693 Re-use of email tokens in Discourse

Discourse is an open-source platform for community discussion. In Discourse before versions 2.7.8 and 2.8.0.beta4, when adding additional email addresses to an existing account on a Discourse site an email token is generated as part of the email verification process. Deleting the additional email...

BIT-DISCOURSE-2021-37703 Information exposure in Discourse

Discourse is an open-source platform for community discussion. In Discourse before versions 2.7.8 and 2.8.0.beta5, a user's read state for a topic such as the last read post number and the notification level is exposed...

BIT-DISCOURSE-2021-41163 RCE via malicious SNS subscription payload

Discourse is an open source platform for community discussion. In affected versions maliciously crafted requests could lead to remote code execution. This resulted from a lack of validation in subscribeurl values. This issue is patched in the latest stable, beta and tests-passed versions of...

BIT-DISCOURSE-2021-41271 Cache poisoning via maliciously-formed request in discourse

Discourse is a platform for community discussion. In affected versions a maliciously crafted request could cause an error response to be cached by intermediate proxies. This could cause a loss of confidentiality for some content. This issue is patched in the latest stable, beta and tests-passed...

BIT-DISCOURSE-2021-43792 Notifications leak in Discourse

Discourse is an open source discussion platform. In affected versions a vulnerability affects users of tag groups who use the "Tags are visible only to the following groups" feature. A tag group may only allow a certain group e.g. staff to view certain tags. Users who were tracking or watching th...

BIT-DISCOURSE-2021-43793 Bypass of Poll voting limits in Discourse

Discourse is an open source discussion platform. In affected versions a vulnerability in the Polls feature allowed users to vote multiple times in a single-option poll. The problem is patched in the latest tests-passed, beta and stable versions of Discourse...