Quick answers
- Is CVE-2026-103523 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-103523 being exploited in the wild.
- How severe is CVE-2026-103523?
- Informational severity, published 12 October 2026.
- Which products and versions are affected?
- Thelia 2.6.0.
- Is there a fix for CVE-2026-103523?
- 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-2026-103523 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-103523?
- 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
The vulnerability is an open redirect in the address creation workflow caused by insufficient validation of the `next` parameter. After form submission, the application redirects to the URL specified in `next` without checking if it belongs to the same origin or an approved allowlist. An authenticated user accessing a crafted URL is required, and successful exploitation redirects the user to an attacker-controlled domain.
Affected products
- Thelia Thelia 2.6.0
Timeline
- 2026-10-12: disclosed