CVE-2024-56197

CVE-2024-56197 affects Discourse: when the PM tags allowed for groups option is enabled, and a recipient belongs to a group listed in that option with the PM tagged, other users can read PM titles and metadata. The issue is described across multiple sources as an information-disclosure risk withi...

CVE-2024-56197 Users can see other user's tagged PMs in Discourse

Discourse is an open source platform for community discussion. PM titles and metadata can be read by other users when the "PM tags allowed for groups" option is enabled, the other user is a member of a group added to this option, and the PM has been tagged. This issue has been patched in the late...

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-2025-22602 Stored DOM-based XSS (without CSP) via video placeholders in Discourse

Discourse is an open source platform for community discussion. In affected versions an attacker can execute arbitrary JavaScript on users' browsers by posting a malicious video placeholder html element. This issue only affects sites with CSP disabled. This problem has been patched in the latest...

CVE-2025-22602 Stored DOM-based XSS (without CSP) via video placeholders in Discourse

Discourse is an open source platform for community discussion. In affected versions an attacker can execute arbitrary JavaScript on users' browsers by posting a malicious video placeholder html element. This issue only affects sites with CSP disabled. This problem has been patched in the latest...

CVE-2025-23023 Anonymous cache poisoning via request headers in Discourse

Discourse is an open source platform for community discussion. In affected versions an attacker can carefully craft a request with the right request headers to poison the anonymous cache for example, the cache may have a response with missing preloaded data. This issue only affects anonymous...

Discourse 访问控制错误漏洞

Discourse is an open source community discussion platform from Discourse Open Source. The platform includes community, email and chat room features. Discourse suffers from an access control error vulnerability that stems from the fact that an attacker can contaminate the anonymous cache with a...

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...

Discourse 跨站脚本漏洞

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 cross-site scripting vulnerability that originates from an attacker being able to execute arbitrary JavaScript code on a...

Discourse AI 跨站脚本漏洞

Discourse AI is an open source AI plugin for Discourse. Discourse AI suffers from a cross-site scripting vulnerability that stems from the fact that when sharing a Discourse AI Bot conversation into a post, if there are HTML entities in the conversation, these entities may be leaked to the...

Discourse authorization issue vulnerability (CNVD-2024-4964085)

Discourse is Discourse open source set of open source community discussion platform. The platform includes features such as community , e-mail and chat rooms . Discourse has an authorization issue vulnerability that stems from improper privilege management of the Filter Email List feature in the...

Discourse cross-site scripting vulnerability (CNVD-2024-4963986)

Discourse is Discourse open source set of open source community discussion platform. The platform includes features such as community , e-mail and chat rooms . Discourse suffers from a cross-site scripting vulnerability that stems from the application's lack of effective filtering and escaping of...

BIT-DISCOURSE-2024-52589 Moderators can view Screened emails even when the “moderators view emails” option is disabled in Discourse

Discourse is an open source platform for community discussion. Moderators can see the Screened emails list in the admin dashboard, and through that can learn the email of a user. This problem is patched in the latest version of Discourse. Users unable to upgrade should remove moderator role from...

BIT-DISCOURSE-2024-53991 Potential Backup file leaked via Nginx in Discourse

Discourse is an open source platform for community discussion. This vulnerability only impacts Discourse instances configured to use FileStore::LocalStore which means uploads and backups are stored locally on disk. If an attacker knows the name of the Discourse backup file, the attacker can trick...

CVE-2024-53991

Discourse is an open source platform for community discussion. This vulnerability only impacts Discourse instances configured to use FileStore::LocalStore which means uploads and backups are stored locally on disk. If an attacker knows the name of the Discourse backup file, the attacker can trick...

CVE-2024-52589 Moderators can view Screened emails even when the “moderators view emails” option is disabled in Discourse

Discourse is an open source platform for community discussion. Moderators can see the Screened emails list in the admin dashboard, and through that can learn the email of a user. This problem is patched in the latest version of Discourse. Users unable to upgrade should remove moderator role from...

CVE-2024-52794 Magnific lightbox susceptible to Cross-site Scripting in Discourse

Discourse is an open source platform for community discussion. Users clicking on the lightbox thumbnails could be affected. This problem is patched in the latest version of Discourse. Users are advised to upgrade. There are no known workarounds for this vulnerability...

CVE-2024-53991 Potential Backup file leaked via Nginx in Discourse

Discourse is an open source platform for community discussion. This vulnerability only impacts Discourse instances configured to use FileStore::LocalStore which means uploads and backups are stored locally on disk. If an attacker knows the name of the Discourse backup file, the attacker can trick...

Discourse 信息泄露漏洞

Discourse is an open source community discussion platform from Discourse Open Source. The platform includes community, email, and chat room features. Discourse suffers from an information disclosure vulnerability that stems from the use of FileStore::LocalStore to store uploaded and backed up fil...

Discourse 安全漏洞

Discourse is an open source community discussion platform from Discourse Open Source. The platform includes community, email, and chat room features. Discourse has a security vulnerability. An attacker could issue multiple XHR requests until the cache was polluted by a response without any...