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CVE-2024-35234

Date: July 3, 2024

Discourse is an open-source discussion platform. Prior to version 3.2.3 on the "stable" branch and version 3.3.0.beta3 on the "tests-passed" branch, an attacker can execute arbitrary JavaScript on users’ browsers by posting a specific URL containing maliciously crafted meta tags. This issue only affects sites with Content Security Polic (CSP) disabled. The problem has been patched in version 3.2.3 on the "stable" branch and version 3.3.0.beta3 on the "tests-passed" branch. As a workaround, ensure CSP is enabled on the forum.

Language: C++

Severity Score

Severity Score

Weakness Type (CWE)

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

CWE-79

CVSS v3.1

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

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