CVE-2026-109208 LearnPress <= 4.4.10 - Unauthenticated Stored Cross-Site Scripting via 'quantity' and 'order_comments' Parameters
Unauthenticated attackers can inject arbitrary scripts via checkout parameters, leading to script execution when users view affected pages.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109208?
CVE-2026-109208 is a high-severity cross-site scripting vulnerability in thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses, published on 17 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'quantity (REST) / order_comments (checkout)' parameter in all versions up to, and including, 4.4.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. With guest checkout enabled the attack is fully unauthenticated; with guest checkout disabled, any Subscriber-level user can exploit both vectors through their own checkout.
Weakness: CWE-79
Which versions are affected by CVE-2026-109208?
How do I fix CVE-2026-109208?
No fix has been published for CVE-2026-109208 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-2026-109208 being exploited?
There is no known exploitation of CVE-2026-109208 in the wild and no public exploit code.
Sources
Also known as GHSA-xjwq-jfhh-r4m2.