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Wed, 03 Jun 2026 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* |
Wed, 03 Jun 2026 02:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Nextcloud
Nextcloud nextcloud Server |
|
| Vendors & Products |
Nextcloud
Nextcloud nextcloud Server |
Mon, 01 Jun 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 01 Jun 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, with the knowledge of other users’ principal URL an attacker could possibly send a request to gain full access to their calendar. Therefore, the attacker must be an authenticated user. This is because of improper authorization controls in the backend of the calendar. If the attacker had access to the calendar, they would be able to view and modify it. It is recommended that the Nextcloud Server is upgraded to 33.0.3 or 32.0.9. It is recommended that the Nextcloud Enterprise Server is upgraded to 33.0.3, 32.0.9, 31.0.14.5, 30.0.17.9, 29.0.16.16, 28.0.14.17, 27.1.11.26, 26.0.13.26, 25.0.13.29, 24.0.12.34, 23.0.12.35, 22.2.10.39, or 21.0.9.23 | |
| Title | Nextcloud: Cross-Account Calendar Takeover via Unauthorized Group-Member-Set Update | |
| Weaknesses | CWE-639 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-01T19:22:51.714Z
Reserved: 2026-05-11T18:41:13.157Z
Link: CVE-2026-45281
Updated: 2026-06-01T19:22:47.816Z
Status : Analyzed
Published: 2026-06-01T19:16:50.193
Modified: 2026-06-03T17:11:29.807
Link: CVE-2026-45281
No data.
OpenCVE Enrichment
Updated: 2026-06-02T20:53:52Z