Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-31819

Severity CVSS v4.0:
MEDIUM
Type:
CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
Publication date:
10/03/2026
Last modified:
11/03/2026

Description

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.

Impact

Vector 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L CVSS v4.0 Severity and Metrics:

Base Score: 6.90 MEDIUM
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): None
Availability (VA): None
Confidentiality (SC): Low
Integrity (SI): Low
Availability (SA): Low

Base Score 4.0
6.90
Severity 4.0
MEDIUM
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x
6.10
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:* 1.9.12 (excluding)
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:* 1.10.0 (including) 1.10.16 (excluding)
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:* 1.11.0 (including) 1.11.17 (excluding)
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:* 1.12.0 (including) 1.12.23 (excluding)
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:* 1.13.0 (including) 1.13.15 (excluding)
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:* 1.14.0 (including) 1.14.18 (excluding)
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:* 2.0.0 (including) 2.0.16 (excluding)
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:* 2.1.0 (including) 2.1.12 (excluding)
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:* 2.2.0 (including) 2.2.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools