Cross-site scripting in DataEase - #VU166140
Published: November 12, 2026
Vulnerability identifier: #VU166140
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary JavaScript in the DataEase origin through stored cross-site scripting.
The vulnerability exists due to incomplete SVG element-name validation in StaticResourceServer.containsDangerousContent when comparing namespace-prefixed tag names against an unqualified blacklist. A remote attacker can upload an SVG containing <s:script> through an image-suffixed upload route without authentication and induce a victim with any required resource-read authorization to open it as a script-capable document, executing the embedded JavaScript.
Affected software
DataEase
Remediation
Install security update from vendor's website.
DataEase - update to 2.10.28