This security advisory describes one medium risk vulnerability.
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]
Exploit availability: NoDescription
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 when resetting a user password. A remote attacker can perform a denial of service (DoS) attack.Mitigation
Install updates from vendor's website.Vulnerable software versions
Nextcloud Server: 18.0.0, 18.0.1, 18.0.2, 18.0.3, 18.0.4, 18.0.5, 18.0.6, 18.0.7, 18.0.8, 18.0.9, 18.0.10, 19.0.0, 19.0.1, 19.0.2, 19.0.3, 19.0.4CPE
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.