CVE-2025-59788

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.

• nextcloud nextcloud server (>= 30.0.0 < 30.0.17) • nextcloud nextcloud server (>= 31.0.0 < 31.0.10) • nextcloud nextcloud server (>= 32.0.0 < 32.0.1) • nextcloud nextcloud server (>= 22.0.0 < 22.2.10.33) • nextcloud nextcloud server (>= 23.0.0 < 23.0.12.29) • nextcloud nextcloud server (>= 24.0.0 < 24.0.12.28) • nextcloud nextcloud server (>= 25.0.0 < 25.0.13.23) • nextcloud nextcloud server (>= 26.0.0 < 26.0.13.20) • nextcloud nextcloud server (>= 27.0.0 < 27.1.11.20) • nextcloud nextcloud server (>= 28.0.0 < 28.0.14.11) • nextcloud nextcloud server (>= 29.0.0 < 29.0.16.8)