Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2025-59788

Severity CVSS v4.0:
Pending analysis
Type:
CWE-749 Exposed Dangerous Method or Function
Publication date:
04/12/2025
Last modified:
25/03/2026

Description

Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user's browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x
6.40
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* 30.0.0 (including) 30.0.17 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* 31.0.0 (including) 31.0.10 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* 32.0.0 (including) 32.0.1 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 22.0.0 (including) 22.2.10.33 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 23.0.0 (including) 23.0.12.29 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 24.0.0 (including) 24.0.12.28 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 25.0.0 (including) 25.0.13.23 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 26.0.0 (including) 26.0.13.20 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 27.0.0 (including) 27.1.11.20 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 28.0.0 (including) 28.0.14.11 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 29.0.0 (including) 29.0.16.8 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 30.0.0 (including) 30.0.17 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 31.0.0 (including) 31.0.10 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 32.0.0 (including) 32.0.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools