# CVE-2026-103527: Thelia reflected XSS in address form next parameter

Source: https://junglewise.ai/threats/cve-2026-103527-thelia-v2-6-0-s-smarty-templates-address-html-and-address-update  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-12. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-103527 · Severity: info · Published 2026-10-12

Thelia is an open-source e-commerce platform that manages online storefronts and product catalogs. In version 2.6.0, the address form templates fail to properly escape user input in the "next" parameter, allowing attackers to inject malicious JavaScript. An authenticated user who clicks a malicious link could have their session hijacked or have unauthorized actions performed on their account.

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

## Quick answers

**Is CVE-2026-103527 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-103527 being exploited in the wild.

**How severe is CVE-2026-103527?** Informational severity, published 12 October 2026.

**Which products and versions are affected?** Thelia 2.6.0.

**Is there a fix for CVE-2026-103527?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-103527 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-103527?** 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.

## Technical details

CVE-2026-103527 is a reflected XSS vulnerability in Thelia v2.6.0's address.html and address-update.html Smarty templates, where double quotes in the "next" parameter are not properly escaped before output. The vulnerability requires an authenticated user to visit an attacker-crafted URL and can lead to JavaScript execution in the user's browser context. A fix is available in versions after 2.6.0.

## Affected products

- Thelia Thelia 2.6.0

## Timeline

- 2026-10-12: disclosed

## References

- [https://kb.cert.org/vuls/id/162329](https://kb.cert.org/vuls/id/162329)

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