CVE-2025-69289

Discourse has insecure default configuration that allows non-admin moderators to takeover any non-staff account via email change

State: Published
Severity: 5.1 Medium
Published: Jan 28, 2026
Updated: Jan 28, 2026
Reserved: Dec 31, 2025

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Description

Discourse is an open source discussion platform. A privilege escalation vulnerability in versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 allows a non-admin moderator to bypass email-change restrictions, allowing a takeover of non-staff accounts. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. As a workaround, ensure moderators are trusted or enable the "require_change_email_confirmation" setting.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
discoursediscourse	< 3.5.4Affected >= 2025.11.0-latest, < 2025.11.2Affected >= 2025.12.0-latest, < 2025.12.1Affected >= 2026.1.0-latest, < 2026.1.0Affected

References

https://github.com/discourse/discourse/security/advisories/GHSA-p39j-x54c-rwqq

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