ownCloud DrawIO for ownCloud Web Page Generator cross site scripting

Summaryinfo

A vulnerability classified as problematic has been found in ownCloud DrawIO for ownCloud. Affected by this issue is some unknown functionality of the component Web Page Generator. The manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2025-53831. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in ownCloud DrawIO for ownCloud (version now known). It has been rated as problematic. This issue affects some unknown processing of the component Web Page Generator. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-53831 since 07/09/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-210435). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Cloud Software

Vendor

• ownCloud

Name

• DrawIO for ownCloud

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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