CVE-2026-120205

Description

Thelia before 3.1.0 contains a stored cross-site scripting vulnerability in ForSomeCustomers::getSummary() that allows unauthenticated attackers to inject scripts via unescaped customer names. Attackers can register with a script payload as their name that executes when administrators view related coupons, stealing CSRF tokens to create administrator accounts.

References

• https://github.com/thelia/thelia/blob/3.0.0/core/lib/Thelia/Condition/Implementation/ForSomeCustomers.php#L119
• https://github.com/thelia/thelia/commit/c90d59375089a0833a56703c6f9f9ddea17bddc9
• https://github.com/thelia/thelia/releases/tag/3.1.0
• https://github.com/thelia/thelia/security/advisories/GHSA-r63g-6wfg-v5v9
• https://www.vulncheck.com/advisories/thelia-before-3.1.0-stored-xss-via-coupon-condition-customer-name