OpenProject is open-source, web-based project management software. Prior to version 17.3.0, a user with `manage_agendas` permission in any project can inject agenda items into meetings belonging to any other project on the instance — even projects they have no access to. No knowledge of the target project, meeting, or victim is required; the attacker can blindly spray items into every meeting on the instance by iterating sequential section IDs. Version 17.3.0 patches the issue.
Metrics
Affected Vendors & Products
References
History
Thu, 23 Apr 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openproject
Openproject openproject |
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| CPEs | cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Openproject
Openproject openproject |
Mon, 20 Apr 2026 17:15:00 +0000
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| Metrics |
ssvc
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Mon, 20 Apr 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Opf
Opf openproject |
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| Vendors & Products |
Opf
Opf openproject |
Mon, 20 Apr 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | OpenProject is open-source, web-based project management software. Prior to version 17.3.0, a user with `manage_agendas` permission in any project can inject agenda items into meetings belonging to any other project on the instance — even projects they have no access to. No knowledge of the target project, meeting, or victim is required; the attacker can blindly spray items into every meeting on the instance by iterating sequential section IDs. Version 17.3.0 patches the issue. | |
| Title | OpenProject has Cross-Project Meeting Agenda Item Injection via Unscoped Section Lookup | |
| Weaknesses | CWE-367 CWE-639 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-20T15:12:52.279Z
Updated: 2026-04-20T16:13:10.714Z
Reserved: 2026-04-15T16:37:22.766Z
Link: CVE-2026-40896
Updated: 2026-04-20T16:12:58.827Z
Status : Analyzed
Published: 2026-04-20T16:16:48.567
Modified: 2026-04-23T13:45:17.563
Link: CVE-2026-40896
No data.