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CVE-2025-48062

Good to know:

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Date: June 9, 2025

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}".

Severity Score

Severity Score

Weakness Type (CWE)

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

CWE-79

Improper Encoding or Escaping of Output

CWE-116

Top Fix

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Upgrade Version

Upgrade to version https://github.com/discourse/discourse.git - v3.4.5;https://github.com/discourse/discourse.git - null

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): LOW
Availability (A): NONE

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