CVE-2025-48062
Discourse is an open-source discussion platform. Prior to version 3.4.4 of the stable branch, version 3.5.0.beta5 of the beta branch, and version 3.5.0.beta6-dev of the tests-passed branch, certain invites via email may result in HTML injection in the email body if the topic title includes HTML. This includes inviting someone (without an account) to a PM and inviting someone (without an account) to a topic with a custom message. This issue is patched in version 3.4.4 of the stable branch, version 3.5.0.beta5 of the beta branch, and version 3.5.0.beta6-dev of the tests-passed branch. This can be worked around if the relevant templates are overridden without {topic_title}.
| Software | From | Fixed in |
|---|---|---|
| discourse / discourse | - | 3.4.4 |
| discourse / discourse | - | 3.5.0 |
| discourse / discourse | 3.5.0-beta1 | 3.5.0-beta1.x |
| discourse / discourse | 3.5.0-beta2 | 3.5.0-beta2.x |
| discourse / discourse | 3.5.0-beta3 | 3.5.0-beta3.x |
| discourse / discourse | 3.5.0-beta4 | 3.5.0-beta4.x |
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