PT-2026-55941 · Owncloud · Anti-Virus For Owncloud+1

Published 2026-07-06 · Updated 2026-07-06 · CVE-2025-53830

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Anti-Virus for ownCloud versions prior to 1.2.3 ownCloud 10 versions prior to 10.15.3

Description Anti-Virus for ownCloud is an anti-virus application used for file storage, synchronization, and sharing. The application is susceptible to Server-Side Request Forgery (SSRF), a flaw that allows an attacker to induce the server-side application to make requests to an unintended location.

Recommendations Upgrade Anti-Virus for ownCloud to version 1.2.3 or later. Upgrade ownCloud 10 to version 10.15.3 or later.

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2025-53830

Affected Products

Anti-Virus For Owncloud

Owncloud 10

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2025-53830 · Security Note
• https://github.com/owncloud/security-advisories/security/advisories/GHSA-3wg4-mg27-hj4w · Note
• https://twitter.com/infoflowcloud/status/2074181923249758412 · Twitter Post
• https://twitter.com/CVEnew/status/2074180683405443584 · Twitter Post