BIT-discourse-2025-68933

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2025-68933.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-discourse-2025-68933
Aliases
Published
2026-02-02T08:42:21.302Z
Modified
2026-02-02T09:26:11.727199Z
Summary
Discourse non-admin moderators can exfiltrate private content via post ownership transfer
Details

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, non-admin moderators with the moderators_change_post_ownership setting enabled can change ownership of posts in private messages and restricted categories they cannot access, then export their data to view the content. This is a broken access control vulnerability affecting sites that grant moderators post ownership transfer permissions. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. The patch adds visibility checks for both the topic and posts before allowing ownership transfer. As a workaround, disable the moderators_change_post_ownership site setting to prevent non-admin moderators from using the post ownership transfer feature.

Database specific 
{
    "cpes": [
        "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
}
References

Affected packages

Bitnami / discourse

Package

Name
discourse
Purl
pkg:bitnami/discourse

Severity

  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.4
Introduced
2025.11.0
Fixed
2025.11.2
Introduced
2025.12.0
Fixed
2025.12.1
Introduced
2026.1.0
Fixed
2026.1.0

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2025-68933.json"