Vulnerability identifier: #VU82075

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-45150

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Nextcloud Calendar
Web applications / Modules and components for CMS

Vendor: Nextcloud

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote user can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Nextcloud Calendar: 1.0.0

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External links
http://github.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452
http://hackerone.com/reports/2058337
http://github.com/nextcloud/calendar/pull/5358

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.