CVE-2025-53831
Received Received - Intake

Stored XSS in DrawIO for ownCloud Application

Publication date: 2026-07-06

Last updated on: 2026-07-06

Assigner: GitHub, Inc.

Description
DrawIO for ownCloud is an application for using DrawIO with the file storage, synchronization, and sharing application ownCloud Classic. In DrawIO for ownCloud prior to version 1.0.2, which corresponds to ownCloud 10 prior to version 10.15.3, attackers with access to the DrawIO app can leverage improper neutralization of input during web page generation to achieve stored XSS. Upgrade ownCloud 10 to version 10.15.3 or later or upgrade DrawIO for ownCloud 10 to version 1.0.2 or later to receive a patch.

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Meta Information

Published
2026-07-06
Last Modified
2026-07-06
Generated
2026-07-06
AI Q&A
2026-07-06
EPSS Evaluated
N/A
NVD
CVE-2025-53831
EUVD
EUVD-2025-210435

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
drawio drawio_for_owncloud to 1.0.2 (exc)
owncloud owncloud to 10.15.3 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

CVE-2025-53831 is a stored cross-site scripting (XSS) vulnerability in the DrawIO app for ownCloud 10 before version 1.0.2 and ownCloud 10 versions prior to 10.15.3.

Attackers who have access to the DrawIO app can exploit improper neutralization of input during web page generation to inject malicious scripts.

This vulnerability is classified under CWE-79, which involves improper neutralization of input during web page generation.

Impact Analysis

This vulnerability allows attackers with access to the DrawIO app to execute stored cross-site scripting (XSS) attacks.

Such attacks can lead to the execution of malicious scripts in the context of the victim's browser, potentially resulting in data theft, session hijacking, or other malicious actions.

The vulnerability has a high severity rating with a CVSS score of 8.2, indicating significant potential impact including confidentiality, integrity, and availability.

Mitigation Strategies

To mitigate the CVE-2025-53831 vulnerability, you should upgrade your software to the patched versions.

  • Upgrade DrawIO for ownCloud to version 1.0.2 or later.
  • Alternatively, upgrade ownCloud 10 to version 10.15.3 or later.

These upgrades address the stored cross-site scripting (XSS) vulnerability caused by improper neutralization of input during web page generation.

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