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Status published
Medium
CVE-2021-37703
Information exposure in Discourse
Vulnerability Description
Discourse is an open-source platform for community discussion. In Discourse before versions 2.7.8 and 2.8.0.beta5, a user's read state for a topic such as the last read post number and the notification level is exposed.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Discourse has insecure default configuration that allows non-admin moderators to takeover any non-staff account via email change
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CVE-2025-69218
Discourse moderators can access admin-only reports exposing private upload URLs
High
7.1
CVE-2025-68934
Discourse Has Denial of Service (DoS) Vulnerability in Drafts Creation Endpoint
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6.5
CVE-2025-68933
Discourse non-admin moderators can exfiltrate private content via post ownership transfer
Medium
6.9
CVE-2025-68666
Discourse users archives leaked to users with moderation privileges
Medium
5.9
Affected Vendor
discourse
View all reports →Affected Software
discourse
Vulnerable Versions:
< 2.7.8
Timeline
Official Publish:
August 13th, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N