---
id: "CVE-2026-120205"
kind: "vulnerability"
aliases: ["CVE-2026-120205"]
title: "Thelia: stored script injection via customer names runs in admin view"
severity: "high"
cvss: 8.0
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["e-commerce", "package", "php", "self-hosted", "thelia"]
not_affected_if: ["registration-closed", "thelia-3.1.0-or-later"]
published_at: "2026-10-31T18:17:08+00:00"
first_seen_at: "2026-10-31T18:37:12+00:00"
updated_at: "2026-10-31T18:38:35+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-120205", "first_seen_at": "2026-10-31T18:37:12+00:00"}]
---

# Thelia: stored script injection via customer names runs in admin view

Thelia, an open-source PHP e-commerce platform, does not escape customer names when showing coupon summaries. An unauthenticated attacker who registers with a script as their name can run that script in an administrator's browser, stealing CSRF tokens to create new administrator accounts.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Thelia version in `composer.json` or the lock file.
- Confirm whether customer self-registration is open on the shop.

## Fix

- Thelia: move to `3.1.0` or later.

## Timeline

- 2026-10-31T18:37:12+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-120205

## From the sources

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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_