What is CVE-2025-68479?

CVE-2025-68479 is a high-severity vulnerability in Discourse, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-01-28.

How severe is CVE-2025-68479?

High severity. CVSS v3 base score is 7.1 out of 10.

Auth bypass in Discourse

CVE-2025-68479

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, some subscription endpoints lack proper checking for ownership before making changes. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. No known workarounds are available.

Vulnerability class: Broken Access Control

EPSS: 0.002 (6.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.

Affected products

Discourse — versions >= 2026.1.0-latest, < 2026.1.0, >= 2025.12.0-latest, < 2025.12.1, < 3.5.4

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2025-68479?: CVE-2025-68479 is a high-severity vulnerability in Discourse, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-01-28.
How severe is CVE-2025-68479?: High severity. CVSS v3 base score is 7.1 out of 10.