Open Redirect
CVE-2026-31819
MEDIUM
GHSA-9ffx-f77r-756w
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
3DescriptionGitHub Advisory
Sylius is an Open Source eCommerce Framework on Symfony. CurrencySwitchController::switchAction(), ImpersonateUserController::impersonateAction() and StorageBasedLocaleSwitcher::handle() use the HTTP Referer header directly when redirecting. The attack requires the victim to click a legitimate application link placed on an attacker-controlled page. The browser automatically sends the attacker's site as the Referer, and the application redirects back to it. This can be used for phishing or credential theft, as the redirect originates from a trusted domain. The severity varies by endpoint; public endpoints require no authentication and are trivially exploitable, while admin-only endpoints require an authenticated session but remain vulnerable if an admin follows a link from an external source such as email or chat. The issue is fixed in versions: 1.9.12, 1.10.16, 1.11.17, 1.12.23, 1.13.15, 1.14.18, 2.0.16, 2.1.12, 2.2.3 and above.
AnalysisAI
Open redirect vulnerabilities in Sylius eCommerce Framework allow unauthenticated attackers to redirect users to arbitrary domains by manipulating the HTTP Referer header through multiple controllers, enabling phishing and credential theft attacks when victims click malicious links from attacker-controlled sites. Public endpoints are trivially exploitable without authentication, while admin endpoints require an authenticated session but remain vulnerable if administrators follow external links. No patch is currently available for this medium-severity flaw.
Technical ContextAI
Classified as CWE-601 (URL Redirection to Untrusted Site (Open Redirect)). Affects Sylius. Sylius is an Open Source eCommerce Framework on Symfony. CurrencySwitchController::switchAction(), ImpersonateUserController::impersonateAction() and StorageBasedLocaleSwitcher::handle() use the HTTP Referer header directly when redirecting. The attack requires the victim to click a legitimate application link placed on an attacker-controlled page. The browser automatically sends the attacker's site as the Referer, and the application redirects back to it. This can be used for phishing or creden
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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