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CVE-2025-48062

Discourse vulnerable to HTML injection when inviting to topic via email PUBLISHED

Description (CNA)

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}`.

Affected (CNA)

Vendor / productVersions
discourse / discourseaffected < 3.4.4; affected < 3.5.0.beta5; affected < 3.5.0.beta6-dev

CWE

CWE-116, CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.