Sylius — Vulnerabilities & Security Advisories 25

Sylius is an open-source e-commerce framework built on the Symfony PHP framework, designed for developers seeking a flexible foundation for custom online stores. Its architecture relies heavily on standard web technologies, making it susceptible to typical application-layer vulnerabilities. Historically, recorded Common Vulnerabilities and Exposures (CVEs) frequently involve SQL injection, cross-site scripting (XSS), and insecure direct object references, stemming from complex form handling and API endpoints. While the project maintains an active security team, the sheer volume of dependencies inherent in Symfony-based applications increases the attack surface. Notable incidents have primarily focused on authentication bypasses and privilege escalation flaws within administrative interfaces rather than widespread data breaches. Users must prioritize regular dependency updates and strict input validation to mitigate risks associated with its extensive plugin ecosystem and custom implementation requirements.