Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud Server | >= 30.0.0, < 30.0.17 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-24wp-pMitigationVendor Advisory
- https://nextcloud.comProduct
- https://www.redteam-pentesting.de/en/advisories/rt-sa-2025-003/ExploitThird Party Advisory
FAQ
What is CVE-2025-59788?
CVE-2025-59788 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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...
How severe is CVE-2025-59788?
CVE-2025-59788 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-59788?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud Server.