CVE-2026-49867 DataEase: Authenticated Stored XSS in DataEase Template Static Resources
Authenticated attackers can inject malicious SVG scripts into DataEase templates, leading to stored XSS and potential account takeover when victims view the resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-49867?
CVE-2026-49867 is a medium-severity cross-site scripting vulnerability in dataease, published on 15 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
DataEase is an open source data visualization and analysis tool. Prior to 2.10.23, DataEase template static resources let authenticated users submit TemplateManageRequest.staticResource through POST /de2api/templateManage/save or DataVisualizationServer.decompression, after which StaticResourceServer.saveFilesToServe and StaticResourceServer.saveSingleFileToServe write Base64-decoded .svg content to /de2api/static-resource/<name>.svg without validating extension, MIME type, decoded bytes, or SVG scriptability, causing stored same-origin cross-site scripting when a victim loads the resource. This issue is fixed in version 2.10.23.
Weakness: CWE-79
Which versions are affected by CVE-2026-49867?
How do I fix CVE-2026-49867?
No fix has been published for CVE-2026-49867 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-49867 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49867 exists.
Sources
Also known as GHSA-jqxj-h53x-mpvf.