CVE-2024-52515: Nextcloud Server

Medium severity, CVSS 6.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Nextcloud Server is a self hosted personal cloud system. After an admin enables the default-disabled SVG preview provider, a malicious user could upload a manipulated SVG file referencing paths. If the file would exist the preview of the SVG would preview the other file instead. It is recommended that the Nextcloud Server is upgraded to 27.1.10, 28.0.6 or 29.0.1 and Nextcloud Enterprise Server is upgraded to 24.0.12.15, 25.0.13.10, 26.0.13.4, 27.1.10, 28.0.6 or 29.0.1.

Affected products

• Nextcloud Nextcloud Server: from 24.0.0, before 24.0.12.15 (fixed in 24.0.12.15); from 25.0.0, before 25.0.13.10 (fixed in 25.0.13.10); from 26.0.0, before 26.0.13.4 (fixed in 26.0.13.4); from 27.0.0, before 27.1.10 (fixed in 27.1.10); from 28.0.0, before 28.0.6 (fixed in 28.0.6); from 29.0.0, before 29.0.1 (fixed in 29.0.1)

Published 2024-11-15. Last modified 2026-06-17.