CVE-2025-53831

DrawIO for ownCloud 10 is vulnerable to Stored XSS

State: Published
Severity: 8.2 High
Published: Jul 6, 2026
Updated: Jul 6, 2026
Reserved: Jul 9, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	8.2 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
DrawIO for ownCloudowncloud	< 1.0.2Affected
ownCloud 10owncloud	< 10.15.3Affected

References

https://github.com/owncloud/security-advisories/security/advisories/GHSA-r9j8-fr2h-m47q

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