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Status published
Medium
CVE-2025-59337
Discourse: Cross-Site Data Exposure via Backup Restore Metacommand Injection in Multisite Deployments
Vulnerability Description
Discourse is an open-source community discussion platform. In versions 3.5.0 and below, malicious meta-commands could be embedded in a backup dump and executed during restore. In multisite setups, this allowed an admin of one site to access data or credentials from other sites. This issue is fixed in version 3.5.1.
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-2025-68934
Discourse Has Denial of Service (DoS) Vulnerability in Drafts Creation Endpoint
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CVE-2025-68933
Discourse non-admin moderators can exfiltrate private content via post ownership transfer
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CVE-2025-68666
Discourse users archives leaked to users with moderation privileges
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Affected Vendor
discourse
View all reports →Affected Software
discourse
Vulnerable Versions:
< 3.5.1
Timeline
Official Publish:
October 1st, 2025
Last Modified:
October 2nd, 2025
Added to House:
July 22nd, 2026