---
id: CVE-2026-120205
title: Thelia before 3.1.0 Stored XSS via Coupon Condition Customer Name
summary: >-
  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…
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: Thelia
product: Thelia
affected:
  - Thelia < 3.1.0
  - core < 3.1.0
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-02T14:35:58.180592Z'
exploitAvailable: true
published: '2026-10-31'
updated: '2026-11-02'
sourceUpdated: '2026-11-02T21:03:06.636Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120205'
references:
  - url: 'https://github.com/thelia/thelia/security/advisories/GHSA-r63g-6wfg-v5v9'
    label: GitHub Security Advisory (GHSA-r63g-6wfg-v5v9)
  - url: >-
      https://github.com/thelia/thelia/commit/c90d59375089a0833a56703c6f9f9ddea17bddc9
  - url: 'https://github.com/thelia/thelia/releases/tag/3.1.0'
    label: Thelia 3.1.0 Release Notes
  - url: >-
      https://github.com/thelia/thelia/blob/3.0.0/core/lib/Thelia/Condition/Implementation/ForSomeCustomers.php#L119
  - url: >-
      https://www.vulncheck.com/advisories/thelia-before-3.1.0-stored-xss-via-coupon-condition-customer-name
    label: >-
      VulnCheck Advisory: Thelia before 3.1.0 Stored XSS via Coupon Condition
      Customer Name
tags:
  - cve.org
  - exploit-available
epss: 0.00263
epssPercentile: 0.1825
ingestedAt: '2026-11-05T19:30:42.851Z'
---

## Overview

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.

## Affected

- `Thelia < 3.1.0`
- `core < 3.1.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.