# CVE-2026-120205: Thelia stored cross-site scripting in coupon condition summary

Source: https://junglewise.ai/threats/cve-2026-120205-thelia-before-3-1-0-contains-a-stored-cross-site-scripting  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-31. Updated: 2026-10-31  
License: CC BY 4.0 with a link back

CVE-2026-120205 · Severity: high · CVSS 8 · Published 2026-10-31

Thelia is an open-source e-commerce platform. An unauthenticated attacker can register a customer account with malicious JavaScript code embedded in their name field. When administrators view coupons that reference this customer, the injected script executes in the admin interface, allowing the attacker to steal CSRF tokens and create unauthorized administrator accounts.

Technologies: [Thelia](https://junglewise.ai/threats/technologies/thelia). Vendors: [Thelia](https://junglewise.ai/threats/vendors/thelia).

## Quick answers

**Is CVE-2026-120205 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-120205 being exploited in the wild.

**How severe is CVE-2026-120205?** High severity, with a CVSS score of 8, published 31 October 2026.

**Which products and versions are affected?** Thelia before 3.1.0.

**Is there a fix for CVE-2026-120205?** Yes: fixed in Thelia 3.1.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-120205 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-120205?** Check whether you run Thelia at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in Thelia 3.1.0

## Technical details

The ForSomeCustomers::getSummary() method in Thelia's coupon condition system directly concatenates customer names into an HTML message without escaping, allowing stored cross-site scripting. An attacker can register as an unauthenticated user with a script payload as their customer name; the malicious code executes when administrators view related coupons in the back office. This enables session hijacking and privilege escalation.

## Affected products

- Thelia Thelia before 3.1.0

## Timeline

- 2026-10-31: disclosed
- 2026-09-16: patched

## References

- [https://github.com/thelia/thelia/blob/3.0.0/core/lib/Thelia/Condition/Implementation/ForSomeCustomers.php](https://github.com/thelia/thelia/blob/3.0.0/core/lib/Thelia/Condition/Implementation/ForSomeCustomers.php)
- [https://github.com/thelia/thelia/commit/c90d59375089a0833a56703c6f9f9ddea17bddc9](https://github.com/thelia/thelia/commit/c90d59375089a0833a56703c6f9f9ddea17bddc9)

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