CVE-2025-6290 Tournament Bracket Generator <= 1.0.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via bracket Shortcode
Authenticated attackers can inject arbitrary scripts via the bracket 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-2025-6290?
CVE-2025-6290 is a medium-severity cross-site scripting vulnerability in blakelong Tournament Bracket Generator, published on 26 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Tournament Bracket Generator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'bracket' shortcode in all versions up to, and including, 1.0.0 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-2025-6290?
It affects 1 product.
Products include Blakelong Tournament Bracket Generator.
How do I fix CVE-2025-6290?
No fix has been published for CVE-2025-6290 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-2025-6290 being exploited?
There is no known exploitation of CVE-2025-6290 in the wild and no public exploit code.
Sources
Also known as GHSA-xgjc-7hjq-hrgw.