CVE-2023-22455

Discourse is an option source discussion platform. Prior to version 2.8.14 on the stable branch and version 3.0.0.beta16 on the beta and tests-passed branches, tag descriptions, which can be updated by moderators, can be used for cross-site scripting attacks. This vulnerability can lead to a full...

CVE-2022-23549

CVE-2022-23549 affects Discourse. The issue allows a post’s raw body to exceed the max_length by embedding HTML comments that are not counted toward the limit. Affected versions: prior to 2.8.14 on the stable branch and prior to 2.9.0.beta16 on the beta/tests-passed branches. Patches are availabl...

CVE-2022-23548

Discourse is an option source discussion platform. Prior to version 2.8.14 on the stable branch and version 2.9.0.beta16 on the beta and tests-passed branches, parsing posts can be susceptible to regular expression denial of service ReDoS attacks. This issue is patched in versions 2.8.14 and...

CVE-2022-46159 Any authenticated Discourse user can create an unlisted topic

Discourse is an open-source discussion platform. In version 2.8.13 and prior on the stable branch and version 2.9.0.beta14 and prior on the beta and tests-passed branches, any authenticated user can create an unlisted topic. These topics, which are not readily available to other users, can take u...

CVE-2022-46159

Discourse (open-source discussion platform) is affected by CVE-2022-46159. Vulnerable versions: stable branch up to 2.8.13, beta/tests-passed branches up to 2.9.0.beta14. The issue allows any authenticated user to create an unlisted topic, which consumes site resources since these topics aren’t r...

Discourse Cross-Site Scripting Vulnerability

Discourse is an open source community discussion platform. The platform includes features such as community, email and chat rooms. A cross-site scripting vulnerability exists in Discourse version 2.8.10 and earlier, 2.9.0.beta11 and earlier, which can be exploited by attackers to inject malicious...

CVE-2022-46150 Discourse may allow exposure of hidden tags in the subject of notification emails

Discourse is an open-source discussion platform. Prior to version 2.8.13 of the stable branch and version 2.9.0.beta14 of the beta and tests-passed branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue...

CVE-2022-46150

Discourse prior to versions 2.8.13 (stable) and 2.9.0.beta14 (beta/tests-passed) contains an information disclosure vulnerability where unauthorized users can learn of hidden tags and that they have been applied to topics they access. The issue is fixed in 2.8.13 (stable) and 2.9.0.beta14 (beta/t...

CVE-2022-41921

Discourse is an open-source discussion platform. Prior to version 2.9.0.beta13, users can post chat messages of an unlimited length, which can cause a denial of service for other users when posting huge amounts of text. Users should upgrade to version 2.9.0.beta13, where a limit has been...

CVE-2022-41944 Discourse users can see notifications for topics they no longer have access to

Discourse is an open-source discussion platform. In stable versions prior to 2.8.12 and beta or tests-passed versions prior to 2.9.0.beta.13, under certain conditions, a user can see notifications for topics they no longer have access to. If there is sensitive information in the topic title, it...

CVE-2022-41921

Discourse CVE-2022-41921 affects the open-source Discourse platform prior to version 2.9.0.beta13, where chat messages could be posted with unlimited length, enabling a denial-of-service condition for other users when large text is posted. The underlying issue is the lack of a length limit in cha...

Cross-site Scripting (XSS)

flarum is vulnerable to cross-site scripting XSS. The library's page title system enables page titles to be converted into HTML DOM nodes when pages are rendered, which allows an attacker to inject malicious HTML markup using a discussion title input when a visitor opens the relevant discussion...

CVE-2022-41938 Cross site scripting vulnerability with discussion titles in flarum

Flarum is an open source discussion platform. Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after v1.5 and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title inpu...

CVE-2022-41938

CVE-2022-41938 (Flarum): XSS in Flarum occurs because the page title system could convert titles into HTML DOM nodes, allowing attacker-controlled HTML markup via a discussion title input. Affected versions: 1.5.0–1.6.1. Impact is browser-based XSS on the discussion page when opened. Remediation:...

PT-2022-26169 · Flarum · Flarum

Name of the Vulnerable Software and Affected Versions: Flarum versions 1.5.0 through 1.6.1 Description: The issue arises from Flarum's page title system, which allowed page titles to be converted into HTML DOM nodes when pages were rendered. This enabled an attacker to inject malicious HTML marku...

CVE-2022-41938 Cross site scripting vulnerability with discussion titles in flarum

Flarum is an open source discussion platform. Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after v1.5 and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title inpu...

CVE-2022-41938 Cross site scripting vulnerability with discussion titles in flarum

Flarum is an open source discussion platform. Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after v1.5 and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title inpu...

QSC 2022: That’s a Wrap!

Over the years, the threat landscape has exploded, and bad actors have become increasingly sophisticated, making the demand for cloud security platforms - that save security teams time and increase efficiency - a must-have for every cyber arsenal. This was underscored last week at QSC 2022 Las...

CVE-2022-39385

Discourse CVE-2022-39385 (open source platform) describes a rare issue where invited users could be added as participants to several private message topics without notification. The root cause is not explicitly detailed beyond being resolved in commit a414520742, with remediation via upgrading to...

CVE-2022-39241

Discourse is a platform for community discussion. A malicious admin could use this vulnerability to perform port enumeration on the local host or other hosts on the internal network, as well as against hosts on the Internet. Latest stable, beta, and test-passed versions are now patched. As a...