CVE detail
CVE-2026-72722
Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, TopicLink.extract_from, TopicLink.ensure_entry_for, and TopicLink.duplicate_lookup do not consistently enforce Guardian.can_see? checks when processing internal links. An authenticated user can submit links to restricted topics, private messages, or hidden posts and receive canonicalized slugs or titles in the composer_messages duplicate_lookup response even though the targets are not visible to that user. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 23.0 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 9
- within the 30d window
- Peak daily
- 9
- highest bucket
Evidence
Source links by recency
9 source links · newest first
No excerpt available.
Exploitgithub.comAug 10, 2026, 4:19 PMNo excerpt available.
Exploitgithub.comAug 10, 2026, 4:19 PMNo excerpt available.
Exploitgithub.comAug 10, 2026, 4:19 PMNo excerpt available.
Exploitgithub.comAug 10, 2026, 4:19 PMNo excerpt available.
Exploitgithub.comAug 10, 2026, 4:19 PMNo excerpt available.
Exploitgithub.comAug 10, 2026, 4:19 PMNo excerpt available.
Exploitgithub.comAug 10, 2026, 4:19 PMNo excerpt available.
Exploitgithub.comAug 10, 2026, 4:19 PMNo excerpt available.
Exploitgithub.comAug 10, 2026, 4:19 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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