CVE-2024-12463 Cross-site scripting in Arena.IM – Live Blogging for real-time events

Medium 6.4 Published 12 Dec 2024 Updated 8 Apr 2026

Authenticated contributors can inject arbitrary scripts via the arena_embed_amp shortcode, leading to stored XSS execution for other users.

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-2024-12463?

CVE-2024-12463 is a medium-severity cross-site scripting vulnerability in arenaim Arena.IM – Live Blogging for real-time events, published on 12 Dec 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Arena.IM – Live Blogging for real-time events plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'arena_embed_amp' shortcode in all versions up to, and including, 0.4.1 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-2024-12463?

It affects 1 product.

Products include Arena.im Arena.im.

How do I fix CVE-2024-12463?

No fix has been published for CVE-2024-12463 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-2024-12463 being exploited?

There is no known exploitation of CVE-2024-12463 in the wild and no public exploit code.

Sources

Also known as GHSA-cg75-wgmm-h9qh.