Answer in brief
CVE-2025-53831 records a High severity (CVSS 8.2) vulnerability in DrawIO for ownCloud 10 is vulnerable to Stored XSS. The current sources do not mark it as known exploited. The current feed maps owncloud/DrawIO for ownCloud (generic), owncloud/ownCloud 10 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps owncloud/DrawIO for ownCloud (generic), owncloud/ownCloud 10 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| owncloud/DrawIO for ownCloudgeneric | < 1.0.2 | Not reported |
| owncloud/ownCloud 10generic | < 10.15.3 | Not reported |
Published upstream
Jul 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-53831 records a High severity (CVSS 8.2) vulnerability in DrawIO for ownCloud 10 is vulnerable to Stored XSS. The current sources do not mark it as known exploited. The current feed maps owncloud/DrawIO for ownCloud (generic), owncloud/ownCloud 10 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps owncloud/DrawIO for ownCloud (generic), owncloud/ownCloud 10 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| owncloud/DrawIO for ownCloudgeneric | < 1.0.2 | Not reported |
| owncloud/ownCloud 10generic | < 10.15.3 | Not reported |
Published upstream
Jul 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.