CVE-2025-11821 Woocommerce – Products By Custom Tax <= 2.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Authenticated attackers can inject arbitrary scripts via shortcode, leading to code execution when users view affected pages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-11821?
CVE-2025-11821 is a medium-severity cross-site scripting vulnerability in elvismdev Woocommerce – Products By Custom Tax, published on 11 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Woocommerce – Products By Custom Tax plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'woo_products_custom_tax' shortcode in all versions up to, and including, 2.2. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Weakness: CWE-79
Which versions are affected by CVE-2025-11821?
How do I fix CVE-2025-11821?
No fix has been published for CVE-2025-11821 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-2025-11821 being exploited?
There is no known exploitation of CVE-2025-11821 in the wild and no public exploit code.
Sources
Also known as GHSA-v2jh-xwwh-gfj8.