CVE-2025-48062

Description

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}`.

Reserved 2025-05-15 | Published 2025-06-09 | Updated 2025-06-09 | Assigner GitHub_M

Problem types

CWE-116: Improper Encoding or Escaping of Output

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

< 3.4.4
affected

< 3.5.0.beta5
affected

< 3.5.0.beta6-dev
affected

References

github.com/...course/security/advisories/GHSA-x8mp-chx3-6x2p

cve.org (CVE-2025-48062)

nvd.nist.gov (CVE-2025-48062)

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