CVE-2022-46148: Discourse allows self-XSS through malicious composer message
First published: Tue Nov 29 2022(Updated: )
Discourse is an open-source messaging platform. In versions 2.8.10 and prior on the `stable` branch and versions 2.9.0.beta11 and prior on the `beta` and `tests-passed` branches, users composing malicious messages and navigating to drafts page could self-XSS. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. This issue is patched in the latest stable, beta and tests-passed versions of Discourse.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Discourse | <=2.8.10 | |
| Discourse | =2.9.0-beta1 | |
| Discourse | =2.9.0-beta10 | |
| Discourse | =2.9.0-beta11 | |
| Discourse | =2.9.0-beta2 | |
| Discourse | =2.9.0-beta3 | |
| Discourse | =2.9.0-beta4 | |
| Discourse | =2.9.0-beta5 | |
| Discourse | =2.9.0-beta6 | |
| Discourse | =2.9.0-beta7 | |
| Discourse | =2.9.0-beta8 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Frequently Asked Questions
What is the severity of CVE-2022-46148?
CVE-2022-46148 is classified as a moderate severity vulnerability due to the potential for self-XSS attacks.
How do I fix CVE-2022-46148?
To fix CVE-2022-46148, update your Discourse installation to version 2.8.11 or later, or to version 2.9.0.beta12 or later.
Who is affected by CVE-2022-46148?
CVE-2022-46148 affects users of Discourse versions 2.8.10 and prior on the stable branch and 2.9.0.beta11 and prior on the beta and tests-passed branches.
What type of vulnerability is CVE-2022-46148?
CVE-2022-46148 is a self-XSS vulnerability that allows users to execute scripts in their own browser session.
What can I do to mitigate the risks associated with CVE-2022-46148?
To mitigate risks associated with CVE-2022-46148, avoid clicking on unsolicited links and ensure your Discourse installation is updated promptly.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/title
- agent/severity
- agent/weakness
- agent/references
- agent/first-publish-date
- agent/description
- agent/author
- agent/last-modified-date
- agent/softwarecombine
- agent/event
- agent/source
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/discourse
- canonical/discourse
- version/discourse/2.8.10
- version/discourse/2.9.0-beta1
- version/discourse/2.9.0-beta10
- version/discourse/2.9.0-beta11
- version/discourse/2.9.0-beta2
- version/discourse/2.9.0-beta3
- version/discourse/2.9.0-beta4
- version/discourse/2.9.0-beta5
- version/discourse/2.9.0-beta6
- version/discourse/2.9.0-beta7
- version/discourse/2.9.0-beta8