CVE-2026-103527 CVE-2026-103527
Reflected XSS in Thelia allows attackers to execute arbitrary JavaScript in the context of authenticated users via malicious links.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-103527?
CVE-2026-103527 is a medium-severity cross-site scripting vulnerability in Thelia, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Thelia v2.6.0's Smarty templates (address.html and address-update.html) fail to properly escape double quotes in the “next” parameter, enabling reflected Cross‑Site Scripting (XSS) when an authenticated user visits the malicious link containing attacker‑controlled JavaScript.
Weakness: CWE-79
Which versions are affected by CVE-2026-103527?
How do I fix CVE-2026-103527?
No fix has been published for CVE-2026-103527 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-103527 being exploited?
There is no known exploitation of CVE-2026-103527 in the wild and no public exploit code.
Sources
Also known as GHSA-643g-3jrv-qcww.