// For flags

CVE-2023-25159

Nextcloud Server previews are accessible without a watermark

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, and Nextcloud Office is a document collaboration app for the same platform. Nextcloud Server 24.0.x prior to 24.0.8 and 25.0.x prior to 25.0.1, Nextcloud Enterprise Server 24.0.x prior to 24.0.8 and 25.0.x prior to 25.0.1, and Nextcloud Office (Richdocuments) App 6.x prior to 6.3.1 and 7.x prior to 7.0.1 have previews accessible without a watermark. The download should be hidden and the watermark should get applied. This issue is fixed in Nextcloud Server 25.0.1 and 24.0.8, Nextcloud Enterprise Server 25.0.1 and 24.0.8, and Nextcloud Office (Richdocuments) App 7.0.1 (for 25) and 6.3.1 (for 24). 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
Low
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
* 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"
>= 24.0.4 <= 24.0.8
Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 24.0.4 <= 24.0.8"
-
Affected
Nextcloud
Search vendor "Nextcloud"
Nextcloud Server
Search vendor "Nextcloud" for product "Nextcloud Server"
24.0.2
Search vendor "Nextcloud" for product "Nextcloud Server" and version "24.0.2"
-
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
Nextcloud
Search vendor "Nextcloud"
Richdocuments
Search vendor "Nextcloud" for product "Richdocuments"
>= 6.0.0 < 6.3.1
Search vendor "Nextcloud" for product "Richdocuments" and version " >= 6.0.0 < 6.3.1"
-
Affected
Nextcloud
Search vendor "Nextcloud"
Richdocuments
Search vendor "Nextcloud" for product "Richdocuments"
7.0.0
Search vendor "Nextcloud" for product "Richdocuments" and version "7.0.0"
-
Affected