{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-28496/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-23T15:04:42.867Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-28496","@id":"https://www.cve.org/CVERecord?id=CVE-2026-28496","description":"FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 have a Server-Side Template Injection (SSTI) vulnerability in the template rendering system. Administrators with access to features that render Twig templates (email templates, mass mail campaigns, custom payment adapters, and the `string_render` API endpoint) can inject arbitrary Twig expressions, leading to information disclosure and remote code execution. The vulnerability exists because Twig temp"},"products":[{"@id":"cpe:2.3:a:fossbilling:fossbilling:\\<_0.8.0:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:fossbilling:fossbilling:\\<_0.8.0:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"No fixed version is published yet; monitor the upstream advisory.","timestamp":"2026-06-23T15:04:42.867Z"}]}