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CVE-2025-67723

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CVE-2025-67723

Published: Jan 28, 2026

Modified: Jan 28, 2026

PUBLISHED

CVSS v3.1

4.6

MEDIUM

Description

Discourse is an open source discussion platform. Versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 have a content-security-policy-mitigated cross-site scriptinv vulnerability on the Discourse Math plugin when using its KaTeX variant. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. As a workaround, the Discourse Math plugin can be disabled, or the Mathjax provider can be used instead of KaTeX.

VendorProductVersions

discourse

discourse

affected
< 3.5.4
affected
>= 2025.11.0-latest, < 2025.11.2
affected
>= 2025.12.0-latest, < 2025.12.1
affected
>= 2026.1.0-latest, < 2026.1.0

Weaknesses (CWE)

CWE-79

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

References

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