CWE
79
Advisory Published
Updated

CVE-2023-22455: Discourse vulnerable to Cross-site Scripting through tag descriptions

First published: Thu Jan 05 2023(Updated: )

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 XSS on sites which have modified or disabled Discourse’s default Content Security Policy. Versions 2.8.14 and 3.0.0.beta16 contain a patch.

Credit: security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
Discourse Discourse<2.8.14
Discourse Discourse=1.1.0-beta1
Discourse Discourse=1.1.0-beta2
Discourse Discourse=1.1.0-beta3
Discourse Discourse=1.1.0-beta4
Discourse Discourse=1.1.0-beta5
Discourse Discourse=1.1.0-beta6
Discourse Discourse=1.1.0-beta6b
Discourse Discourse=1.1.0-beta7
Discourse Discourse=1.1.0-beta8
Discourse Discourse=1.2.0-beta1
Discourse Discourse=1.2.0-beta2
Discourse Discourse=1.2.0-beta3
Discourse Discourse=1.2.0-beta4
Discourse Discourse=1.2.0-beta5
Discourse Discourse=1.2.0-beta6
Discourse Discourse=1.2.0-beta7
Discourse Discourse=1.2.0-beta8
Discourse Discourse=1.2.0-beta9
Discourse Discourse=1.3.0-beta1
Discourse Discourse=1.3.0-beta10
Discourse Discourse=1.3.0-beta11
Discourse Discourse=1.3.0-beta2
Discourse Discourse=1.3.0-beta3
Discourse Discourse=1.3.0-beta4
Discourse Discourse=1.3.0-beta5
Discourse Discourse=1.3.0-beta6
Discourse Discourse=1.3.0-beta7
Discourse Discourse=1.3.0-beta8
Discourse Discourse=1.3.0-beta9
Discourse Discourse=1.4.0-beta1
Discourse Discourse=1.4.0-beta10
Discourse Discourse=1.4.0-beta11
Discourse Discourse=1.4.0-beta12
Discourse Discourse=1.4.0-beta2
Discourse Discourse=1.4.0-beta3
Discourse Discourse=1.4.0-beta4
Discourse Discourse=1.4.0-beta5
Discourse Discourse=1.4.0-beta6
Discourse Discourse=1.4.0-beta7
Discourse Discourse=1.4.0-beta8
Discourse Discourse=1.4.0-beta9
Discourse Discourse=1.5.0-beta1
Discourse Discourse=1.5.0-beta10
Discourse Discourse=1.5.0-beta11
Discourse Discourse=1.5.0-beta12
Discourse Discourse=1.5.0-beta13
Discourse Discourse=1.5.0-beta13b
Discourse Discourse=1.5.0-beta14
Discourse Discourse=1.5.0-beta2
Discourse Discourse=1.5.0-beta3
Discourse Discourse=1.5.0-beta4
Discourse Discourse=1.5.0-beta5
Discourse Discourse=1.5.0-beta6
Discourse Discourse=1.5.0-beta7
Discourse Discourse=1.5.0-beta8
Discourse Discourse=1.5.0-beta9
Discourse Discourse=1.6.0-beta1
Discourse Discourse=1.6.0-beta10
Discourse Discourse=1.6.0-beta11
Discourse Discourse=1.6.0-beta12
Discourse Discourse=1.6.0-beta2
Discourse Discourse=1.6.0-beta3
Discourse Discourse=1.6.0-beta4
Discourse Discourse=1.6.0-beta5
Discourse Discourse=1.6.0-beta6
Discourse Discourse=1.6.0-beta7
Discourse Discourse=1.6.0-beta8
Discourse Discourse=1.6.0-beta9
Discourse Discourse=1.7.0-beta1
Discourse Discourse=1.7.0-beta10
Discourse Discourse=1.7.0-beta11
Discourse Discourse=1.7.0-beta2
Discourse Discourse=1.7.0-beta3
Discourse Discourse=1.7.0-beta4
Discourse Discourse=1.7.0-beta5
Discourse Discourse=1.7.0-beta6
Discourse Discourse=1.7.0-beta7
Discourse Discourse=1.7.0-beta8
Discourse Discourse=1.7.0-beta9
Discourse Discourse=1.8.0-beta1
Discourse Discourse=1.8.0-beta10
Discourse Discourse=1.8.0-beta11
Discourse Discourse=1.8.0-beta12
Discourse Discourse=1.8.0-beta13
Discourse Discourse=1.8.0-beta2
Discourse Discourse=1.8.0-beta3
Discourse Discourse=1.8.0-beta4
Discourse Discourse=1.8.0-beta5
Discourse Discourse=1.8.0-beta6
Discourse Discourse=1.8.0-beta7
Discourse Discourse=1.8.0-beta8
Discourse Discourse=1.8.0-beta9
Discourse Discourse=1.9.0-beta1
Discourse Discourse=1.9.0-beta10
Discourse Discourse=1.9.0-beta11
Discourse Discourse=1.9.0-beta12
Discourse Discourse=1.9.0-beta13
Discourse Discourse=1.9.0-beta14
Discourse Discourse=1.9.0-beta15
Discourse Discourse=1.9.0-beta16
Discourse Discourse=1.9.0-beta17
Discourse Discourse=1.9.0-beta2
Discourse Discourse=1.9.0-beta3
Discourse Discourse=1.9.0-beta4
Discourse Discourse=1.9.0-beta5
Discourse Discourse=1.9.0-beta6
Discourse Discourse=1.9.0-beta7
Discourse Discourse=1.9.0-beta8
Discourse Discourse=1.9.0-beta9
Discourse Discourse=2.0.0-beta1
Discourse Discourse=2.0.0-beta10
Discourse Discourse=2.0.0-beta2
Discourse Discourse=2.0.0-beta3
Discourse Discourse=2.0.0-beta4
Discourse Discourse=2.0.0-beta5
Discourse Discourse=2.0.0-beta6
Discourse Discourse=2.0.0-beta7
Discourse Discourse=2.0.0-beta8
Discourse Discourse=2.0.0-beta9
Discourse Discourse=2.1.0-beta1
Discourse Discourse=2.1.0-beta2
Discourse Discourse=2.1.0-beta3
Discourse Discourse=2.1.0-beta4
Discourse Discourse=2.1.0-beta5
Discourse Discourse=2.1.0-beta6
Discourse Discourse=2.2.0-beta1
Discourse Discourse=2.2.0-beta10
Discourse Discourse=2.2.0-beta2
Discourse Discourse=2.2.0-beta3
Discourse Discourse=2.2.0-beta4
Discourse Discourse=2.2.0-beta5
Discourse Discourse=2.2.0-beta6
Discourse Discourse=2.2.0-beta7
Discourse Discourse=2.2.0-beta8
Discourse Discourse=2.2.0-beta9
Discourse Discourse=2.3.0-beta1
Discourse Discourse=2.3.0-beta10
Discourse Discourse=2.3.0-beta11
Discourse Discourse=2.3.0-beta2
Discourse Discourse=2.3.0-beta3
Discourse Discourse=2.3.0-beta4
Discourse Discourse=2.3.0-beta5
Discourse Discourse=2.3.0-beta6
Discourse Discourse=2.3.0-beta7
Discourse Discourse=2.3.0-beta8
Discourse Discourse=2.3.0-beta9
Discourse Discourse=2.4.0-beta1
Discourse Discourse=2.4.0-beta10
Discourse Discourse=2.4.0-beta11
Discourse Discourse=2.4.0-beta2
Discourse Discourse=2.4.0-beta3
Discourse Discourse=2.4.0-beta4
Discourse Discourse=2.4.0-beta5
Discourse Discourse=2.4.0-beta6
Discourse Discourse=2.4.0-beta7
Discourse Discourse=2.4.0-beta8
Discourse Discourse=2.4.0-beta9
Discourse Discourse=2.5.0-beta1
Discourse Discourse=2.5.0-beta2
Discourse Discourse=2.5.0-beta3
Discourse Discourse=2.5.0-beta4
Discourse Discourse=2.5.0-beta5
Discourse Discourse=2.5.0-beta6
Discourse Discourse=2.5.0-beta7
Discourse Discourse=2.6.0-beta1
Discourse Discourse=2.6.0-beta2
Discourse Discourse=2.6.0-beta3
Discourse Discourse=2.6.0-beta4
Discourse Discourse=2.6.0-beta5
Discourse Discourse=2.6.0-beta6
Discourse Discourse=2.7.0-beta1
Discourse Discourse=2.7.0-beta2
Discourse Discourse=2.7.0-beta3
Discourse Discourse=2.7.0-beta4
Discourse Discourse=2.7.0-beta5
Discourse Discourse=2.7.0-beta6
Discourse Discourse=2.7.0-beta7
Discourse Discourse=2.7.0-beta8
Discourse Discourse=2.7.0-beta9
Discourse Discourse=2.8.0-beta1
Discourse Discourse=2.8.0-beta10
Discourse Discourse=2.8.0-beta11
Discourse Discourse=2.8.0-beta2
Discourse Discourse=2.8.0-beta3
Discourse Discourse=2.8.0-beta4
Discourse Discourse=2.8.0-beta5
Discourse Discourse=2.8.0-beta6
Discourse Discourse=2.8.0-beta7
Discourse Discourse=2.8.0-beta8
Discourse Discourse=2.8.0-beta9
Discourse Discourse=2.9.0-beta1
Discourse Discourse=2.9.0-beta10
Discourse Discourse=2.9.0-beta11
Discourse Discourse=2.9.0-beta12
Discourse Discourse=2.9.0-beta13
Discourse Discourse=2.9.0-beta14
Discourse Discourse=2.9.0-beta2
Discourse Discourse=2.9.0-beta3
Discourse Discourse=2.9.0-beta4
Discourse Discourse=2.9.0-beta5
Discourse Discourse=2.9.0-beta6
Discourse Discourse=2.9.0-beta7
Discourse Discourse=2.9.0-beta8
Discourse Discourse=2.9.0-beta9
Discourse Discourse=3.0.0-beta15
<2.8.14
=1.1.0-beta1
=1.1.0-beta2
=1.1.0-beta3
=1.1.0-beta4
=1.1.0-beta5
=1.1.0-beta6
=1.1.0-beta6b
=1.1.0-beta7
=1.1.0-beta8
=1.2.0-beta1
=1.2.0-beta2
=1.2.0-beta3
=1.2.0-beta4
=1.2.0-beta5
=1.2.0-beta6
=1.2.0-beta7
=1.2.0-beta8
=1.2.0-beta9
=1.3.0-beta1
=1.3.0-beta10
=1.3.0-beta11
=1.3.0-beta2
=1.3.0-beta3
=1.3.0-beta4
=1.3.0-beta5
=1.3.0-beta6
=1.3.0-beta7
=1.3.0-beta8
=1.3.0-beta9
=1.4.0-beta1
=1.4.0-beta10
=1.4.0-beta11
=1.4.0-beta12
=1.4.0-beta2
=1.4.0-beta3
=1.4.0-beta4
=1.4.0-beta5
=1.4.0-beta6
=1.4.0-beta7
=1.4.0-beta8
=1.4.0-beta9
=1.5.0-beta1
=1.5.0-beta10
=1.5.0-beta11
=1.5.0-beta12
=1.5.0-beta13
=1.5.0-beta13b
=1.5.0-beta14
=1.5.0-beta2
=1.5.0-beta3
=1.5.0-beta4
=1.5.0-beta5
=1.5.0-beta6
=1.5.0-beta7
=1.5.0-beta8
=1.5.0-beta9
=1.6.0-beta1
=1.6.0-beta10
=1.6.0-beta11
=1.6.0-beta12
=1.6.0-beta2
=1.6.0-beta3
=1.6.0-beta4
=1.6.0-beta5
=1.6.0-beta6
=1.6.0-beta7
=1.6.0-beta8
=1.6.0-beta9
=1.7.0-beta1
=1.7.0-beta10
=1.7.0-beta11
=1.7.0-beta2
=1.7.0-beta3
=1.7.0-beta4
=1.7.0-beta5
=1.7.0-beta6
=1.7.0-beta7
=1.7.0-beta8
=1.7.0-beta9
=1.8.0-beta1
=1.8.0-beta10
=1.8.0-beta11
=1.8.0-beta12
=1.8.0-beta13
=1.8.0-beta2
=1.8.0-beta3
=1.8.0-beta4
=1.8.0-beta5
=1.8.0-beta6
=1.8.0-beta7
=1.8.0-beta8
=1.8.0-beta9
=1.9.0-beta1
=1.9.0-beta10
=1.9.0-beta11
=1.9.0-beta12
=1.9.0-beta13
=1.9.0-beta14
=1.9.0-beta15
=1.9.0-beta16
=1.9.0-beta17
=1.9.0-beta2
=1.9.0-beta3
=1.9.0-beta4
=1.9.0-beta5
=1.9.0-beta6
=1.9.0-beta7
=1.9.0-beta8
=1.9.0-beta9
=2.0.0-beta1
=2.0.0-beta10
=2.0.0-beta2
=2.0.0-beta3
=2.0.0-beta4
=2.0.0-beta5
=2.0.0-beta6
=2.0.0-beta7
=2.0.0-beta8
=2.0.0-beta9
=2.1.0-beta1
=2.1.0-beta2
=2.1.0-beta3
=2.1.0-beta4
=2.1.0-beta5
=2.1.0-beta6
=2.2.0-beta1
=2.2.0-beta10
=2.2.0-beta2
=2.2.0-beta3
=2.2.0-beta4
=2.2.0-beta5
=2.2.0-beta6
=2.2.0-beta7
=2.2.0-beta8
=2.2.0-beta9
=2.3.0-beta1
=2.3.0-beta10
=2.3.0-beta11
=2.3.0-beta2
=2.3.0-beta3
=2.3.0-beta4
=2.3.0-beta5
=2.3.0-beta6
=2.3.0-beta7
=2.3.0-beta8
=2.3.0-beta9
=2.4.0-beta1
=2.4.0-beta10
=2.4.0-beta11
=2.4.0-beta2
=2.4.0-beta3
=2.4.0-beta4
=2.4.0-beta5
=2.4.0-beta6
=2.4.0-beta7
=2.4.0-beta8
=2.4.0-beta9
=2.5.0-beta1
=2.5.0-beta2
=2.5.0-beta3
=2.5.0-beta4
=2.5.0-beta5
=2.5.0-beta6
=2.5.0-beta7
=2.6.0-beta1
=2.6.0-beta2
=2.6.0-beta3
=2.6.0-beta4
=2.6.0-beta5
=2.6.0-beta6
=2.7.0-beta1
=2.7.0-beta2
=2.7.0-beta3
=2.7.0-beta4
=2.7.0-beta5
=2.7.0-beta6
=2.7.0-beta7
=2.7.0-beta8
=2.7.0-beta9
=2.8.0-beta1
=2.8.0-beta10
=2.8.0-beta11
=2.8.0-beta2
=2.8.0-beta3
=2.8.0-beta4
=2.8.0-beta5
=2.8.0-beta6
=2.8.0-beta7
=2.8.0-beta8
=2.8.0-beta9
=2.9.0-beta1
=2.9.0-beta10
=2.9.0-beta11
=2.9.0-beta12
=2.9.0-beta13
=2.9.0-beta14
=2.9.0-beta2
=2.9.0-beta3
=2.9.0-beta4
=2.9.0-beta5
=2.9.0-beta6
=2.9.0-beta7
=2.9.0-beta8
=2.9.0-beta9
=3.0.0-beta15

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Frequently Asked Questions

  • What is the severity of CVE-2023-22455?

    CVE-2023-22455 has a medium severity rating due to its potential for cross-site scripting (XSS) attacks.

  • How do I fix CVE-2023-22455?

    To fix CVE-2023-22455, upgrade Discourse to version 2.8.14 or later on the stable branch or version 3.0.0.beta16 or later on beta branches.

  • Who is affected by CVE-2023-22455?

    CVE-2023-22455 affects Discourse platforms prior to version 2.8.14 and certain beta versions including all 1.x and 2.x beta releases.

  • What kind of attacks can CVE-2023-22455 facilitate?

    CVE-2023-22455 can facilitate cross-site scripting (XSS) attacks that may allow attackers to execute arbitrary scripts in the context of the user's browser.

  • How is CVE-2023-22455 exploited?

    An attacker may exploit CVE-2023-22455 by leveraging modifiable tag descriptions by moderators to inject malicious scripts.

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