CVEvulnerability
CVE-2023-45150
4.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2023-10-16
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-354, CWE-400
Description
Nextcloud calendar is a calendar app for the Nextcloud server platform. Due to missing precondition checks the server was trying to validate strings of any length as email addresses even when megabytes of data were provided, eventually making the server busy and unresponsive. It is recommended that the Nextcloud Calendar app is upgraded to 4.4.4. The only workaround for users unable to upgrade is to disable the calendar app.
Affected configurations
• nextcloud calendar (>= 1.0 < 4.4.4)
Related
References
- https://github.com/nextcloud/calendar/pull/5358 Patch
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452 Vendor Advisory
- https://hackerone.com/reports/2058337 Exploit, Issue Tracking
- https://github.com/nextcloud/calendar/pull/5358 Patch
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452 Vendor Advisory
- https://hackerone.com/reports/2058337 Exploit, Issue Tracking