Description
Sylius is an Open Source eCommerce Framework on Symfony. A cross-site scripting (XSS) vulnerability exists in the shop checkout login form handled by the ApiLoginController Stimulus controller. When a login attempt fails, AuthenticationFailureHandler returns a JSON response whose message field is rendered into the DOM using innerHTML, allowing any HTML or JavaScript in that value to be parsed and executed by the browser. The issue is fixed in versions: 2.0.16, 2.1.12, 2.2.3 and above.
References (1)
Core 1
Core References
Vendor Advisory x_refsource_confirm
https://github.com/Sylius/Sylius/security/advisories/GHSA-vgh8-c6fp-7gcg
Scores
CVSS v3
6.1
EPSS
0.0018
EPSS Percentile
7.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
sylius/sylius
2.0.0 - 2.0.16Packagist
sylius/sylius
2.0.0 - 2.0.16
Published
Mar 10, 2026
Tracked Since
Mar 11, 2026