Vulnerability Monitor

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CVE-2023-45150

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.

Published

2023-10-16T20:15:15.393

Last Modified

2024-11-21T08:26:27.023

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.3 (MEDIUM)

Weaknesses

Type: Secondary
CWE-400
Type: Primary
CWE-354

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nextcloud	calendar	< 4.4.4	Yes

References

https://github.com/nextcloud/calendar/pull/5358 Patch ([email protected])
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452 Vendor Advisory ([email protected])
https://hackerone.com/reports/2058337 Exploit, Issue Tracking ([email protected])
https://github.com/nextcloud/calendar/pull/5358 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://hackerone.com/reports/2058337 Exploit, Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)