CVE-2026-120205
Thelia before 3.1.0 Stored XSS via Coupon Condition Customer Name
- State
- Published
- Severity
- 7.4 High
- Published
- Oct 31, 2026
- Updated
- Oct 31, 2026
- Reserved
- Oct 31, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.4 High | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.0 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
TheliaThelia |
|
Thelia CoreThelia |
|
References
- GitHub Security Advisory (GHSA-r63g-6wfg-v5v9)vendor-advisory
- https://github.com/thelia/thelia/commit/c90d59375089a0833a56703c6f9f9ddea17bddc9patch
- Thelia 3.1.0 Release Notesrelease-notes
- https://github.com/thelia/thelia/blob/3.0.0/core/lib/Thelia/Condition/Implementation/ForSomeCustomers.php#L119technical-description
- VulnCheck Advisory: Thelia before 3.1.0 Stored XSS via Coupon Condition Customer Namethird-party-advisory
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