MISP UiBeta Collection View Bypasses Event ACL, Exposing Unauthorized Event Data
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| MISP | MISP | unaffected |
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| Misp | Misp |
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Vendor Solution
The view template now retrieves the authenticated user object and applies Event::createEventConditions($me) to the secondary event query, ensuring the same per-user ACL that the controller enforces is also applied at the view layer. The galaxy cluster attachment call was also updated to use the same authenticated user reference, closing the cluster-scoped ACL gap.
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.372% probability within 30 days)
| Link | Providers |
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| https://github.com/MISP/MISP/commit/44573e4a8 |
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| Metrics |
ssvc
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| First Time appeared |
Misp
Misp misp |
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| Vendors & Products |
Misp
Misp misp |
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| Description | MISP's UiBeta theme collection view (app/View/Themed/UiBeta/Collections/view.ctp) performed a secondary query of member events by UUID without applying the caller's access control list (ACL). The CollectionsController::view() action correctly resolved collection element UUIDs through Event::fetchSimpleEvents($user, ...), which enforces per-user event ACL. However, the view template independently re-queried the same UUIDs using only an Event.uuid IN (...) condition, omitting the createEventConditions() authorization filter. Because collection element UUIDs are stored without server-side authorization against the referenced event (CollectionElementsController::add() accepts whatever UUID the collection owner posts), an authenticated user with view access to a collection could retrieve full details of events they are not permitted to read. The exposed data included event identifiers, info, dates, timestamps, creator organization, all event tags, and galaxy clusters (the latter attached via a cluster-scoped rather than event-scoped ACL check). This constitutes an authorization bypass at the presentation layer, allowing horizontal privilege escalation across event boundaries within the MISP instance. | |
| Title | MISP UiBeta Collection View Bypasses Event ACL, Exposing Unauthorized Event Data | |
| Weaknesses | CWE-285 CWE-862 |
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| Metrics |
cvssV4_0
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