// For flags

CVE-2023-25161

Nextcloud Server's missing rate limiting on password reset functionality allows sending lots of emails

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server and Nextcloud Enterprise Server prior to versions 25.0.1 24.0.8, and 23.0.12 missing rate limiting on password reset functionality. This could result in service slowdown, storage overflow, or cost impact when using external email services. Users should upgrade to Nextcloud Server 25.0.1, 24.0.8, or 23.0.12 or Nextcloud Enterprise Server 25.0.1, 24.0.8, or 23.0.12 to receive a patch. No known workarounds are available.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-02-03 CVE Reserved
  • 2023-02-13 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-09-05 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-284: Improper Access Control
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Nextcloud
Search vendor "Nextcloud"
Nextcloud Server
Search vendor "Nextcloud" for product "Nextcloud Server"
< 23.0.12
Search vendor "Nextcloud" for product "Nextcloud Server" and version " < 23.0.12"
-
Affected
Nextcloud
Search vendor "Nextcloud"
Nextcloud Server
Search vendor "Nextcloud" for product "Nextcloud Server"
>= 24.0.0 < 24.0.8
Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 24.0.0 < 24.0.8"
-
Affected
Nextcloud
Search vendor "Nextcloud"
Nextcloud Server
Search vendor "Nextcloud" for product "Nextcloud Server"
25.0.0
Search vendor "Nextcloud" for product "Nextcloud Server" and version "25.0.0"
-
Affected