CVE-2026-31822
Medium
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.
SeverityMedium
CVSS6.1
Exploit probability12. percentile0.2%
Product
Sylius
PublishedMar 10, 2026
First seenMar 10, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- sylius sylius2.0.16, 2.1.12, 2.2.3 or later
- sylius/sylius2.0.16, 2.1.12, 2.2.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sylius sylius | 2.0.0 ≤ v < 2.0.16, 2.1.0 ≤ v < 2.1.12, 2.2.0 ≤ v < 2.2.3 | 2.0.16, 2.1.12, 2.2.3 |
| sylius/syliusPackagist | 2.0.0 ≤ v < 2.0.16, 2.1.0 ≤ v < 2.1.12, 2.2.0 ≤ v < 2.2.3 | 2.0.16, 2.1.12, 2.2.3 |
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