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CVE-2025-59788

Published: Dec 4, 2025Updated: Dec 8, 2025 Sources: CVE List NVD BDUCWE-749
NVD MITRE
6.4CVSSMEDIUM
EPSS Score
0.2%
Top 84.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-749

Affected Products

NextcloudNextcloud
SaaSSaaS Service
Cloud & SaaS / saas-application
FedoraFedora Project
On-premOS
Operating Systems / linux-distro
Fedora EPELFedora Project
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Nextcloud ServerNextcloud GmbH
SaaSSaaS Service
Cloud & SaaS / saas-application
nextcloudoss-projectDECloud & SaaSaka nextcloud server
fedora projectoss-projectUSOperating Systemsaka fedora
ооо «ред софт»commercialRUOperating Systemsaka red soft
nextcloud gmbhcommercialDECloud & SaaSaka nextcloud server, nextcloud enterprise server, nextcloud calendar
and 1 more affected products View all →

Exploitability

Official Patch Available

References

https://nextcloud.com
nextcloud.com
https://www.redteam-pentesting.de/en/advisories/rt-sa-2025-003/
redteam-pentesting.de
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-24wp-p865-7j4r
github.com
and 1 more references View all →

Timeline

Published
Dec 4, 2025
Last Updated
Dec 8, 2025

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