Description
openEQUELLA before 2026.1.0 contains an authenticated stored server-side template injection vulnerability in FreemarkerPortletRenderer.renderHtml() that allows any authenticated non-guest user to achieve remote code execution by storing a malicious FreeMarker payload through a POST request to the RemotePortletService invoker endpoint. The markup field from stored portlet configuration is passed directly to custFactory.createResult() without a TemplateClassResolver restriction or FreeMarker sandboxing in BasicConfiguration, leaving built-ins such as ?new and freemarker.template.utility.Execute available, causing the payload to execute in the application server process context when any user renders a dashboard containing the affected portlet.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
openequella openEQUELLA
Default version status: unaffected
0 to < 2026.1.0affected2026.1.0unaffected
pkg:github/openequella/openEQUELLAReferences
- https://blog.evan.lat/posts/openeq ↗
- https://github.com/openequella/openEQUELLA/commit/d6e165afc986f8a3ed912cdb367d5ad8c1eeab5c ↗
- https://github.com/openequella/openEQUELLA/releases/tag/2026.1.0 ↗
- https://github.com/openequella/openEQUELLA/security/advisories/GHSA-62g6-mmp6-9wv2 ↗
- https://www.vulncheck.com/advisories/openequella-authenticated-stored-ssti-via-freemarkerportletrenderer ↗