Design/Logic Flaw

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, a malicious user can edit a post in a topic and cause a DoS with a carefully crafted edit reason. The issue is patched in version 3.0.6 of th...

Design/Logic Flaw

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, information about restricted-visibility topic tags could be obtained by unauthorized users. The issue is patched in version 3.0.6 of the stab...

Input validation

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, in multiple controller actions, Discourse accepts limit params but does not impose any upper bound on the values being accepted. Without an...

Design/Logic Flaw

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, more users than permitted could be created from invite links. The issue is patched in version 3.0.6 of the stable branch and version...

CVE-2023-38685

Discourse is affected in versions prior to stable 3.0.6 and beta/tests-passed 3.1.0.beta7, where information about restricted-visibility topic tags could be obtained by unauthorized users. The issue is fixed in stable 3.0.6 and beta/tests-passed 3.1.0.beta7. Impact: potential information disclosu...

CVE-2023-38685 Discourse's restricted tag information visible to unauthenticated users

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, information about restricted-visibility topic tags could be obtained by unauthorized users. The issue is patched in version 3.0.6 of the stab...

CVE-2023-38685 Discourse's restricted tag information visible to unauthenticated users

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, information about restricted-visibility topic tags could be obtained by unauthorized users. The issue is patched in version 3.0.6 of the stab...

CVE-2023-38684 Discourse vulnerable to ossible DDoS due to unbounded limits in various controller actions

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, in multiple controller actions, Discourse accepts limit params but does not impose any upper bound on the values being accepted. Without an...

CVE-2023-38684 Discourse vulnerable to ossible DDoS due to unbounded limits in various controller actions

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, in multiple controller actions, Discourse accepts limit params but does not impose any upper bound on the values being accepted. Without an...

CVE-2023-38498

Discourse (open source forum software) is affected by CVE-2023-38498. Prior to Discourse 3.0.6 (stable) and 3.1.0.beta7 (beta/tests-passed), a malicious user can cause the defer queue to not progress promptly on multisite installations within the same site. The vulnerability is fixed in 3.0.6 (st...

CVE-2023-38498 Discourse vulnerable to DoS via defer queue

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, a malicious user can prevent the defer queue from proceeding promptly on sites hosted in the same multisite installation. The issue is patche...

CVE-2023-37467

Discourse is an open source discussion platform. Prior to version 3.1.0.beta7 of the beta and tests-passed branches, a CSP Content Security Policy nonce reuse vulnerability was discovered could allow cross-site scripting XSS attacks to bypass CSP protection for anonymous i.e. unauthenticated user...

Cross site scripting

Discourse is an open source discussion platform. Prior to version 3.1.0.beta7 of the beta and tests-passed branches, a CSP Content Security Policy nonce reuse vulnerability was discovered could allow cross-site scripting XSS attacks to bypass CSP protection for anonymous i.e. unauthenticated user...

CVE-2023-37906

CVE-2023-37906 affects the Discourse open source platform. Prior to version 3.0.6 (stable) and 3.1.0.beta7 (beta/tests-passed) , a malicious user could edit a post in a topic with a crafted edit reason to trigger a DoS. The vulnerability is patched in 3.0.6 (stable) and 3.1.0.beta7 (beta/tests-pa...

CVE-2023-37906 Discourse vulnerable to DoS via post edit reason

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, a malicious user can edit a post in a topic and cause a DoS with a carefully crafted edit reason. The issue is patched in version 3.0.6 of th...

CVE-2023-37906 Discourse vulnerable to DoS via post edit reason

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, a malicious user can edit a post in a topic and cause a DoS with a carefully crafted edit reason. The issue is patched in version 3.0.6 of th...

CVE-2023-37904 Discourse Race Condition in Accept Invite

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, more users than permitted could be created from invite links. The issue is patched in version 3.0.6 of the stable branch and version...

CVE-2023-37904 Discourse Race Condition in Accept Invite

Discourse is an open source discussion platform. Prior to version 3.0.6 of the stable branch and version 3.1.0.beta7 of the beta and tests-passed branches, more users than permitted could be created from invite links. The issue is patched in version 3.0.6 of the stable branch and version...

CVE-2023-37467

Summary (CVE-2023-37467): Discourse prior to version 3.1.0.beta7 (beta/tests-passed branches) contains a CSP nonce reuse vulnerability that could allow cross-site scripting to bypass CSP protections for anonymous users. There are no known XSS vectors reported yet, and the vulnerability does not a...

CVE-2023-37467 Discourse CSP nonce reuse vulnerability for anonymous users

Discourse is an open source discussion platform. Prior to version 3.1.0.beta7 of the beta and tests-passed branches, a CSP Content Security Policy nonce reuse vulnerability was discovered could allow cross-site scripting XSS attacks to bypass CSP protection for anonymous i.e. unauthenticated user...