What’s Vulnerable › Vulnerabilities

CVE-2024-12463: Arena.IM – Live Blogging for real-time events <= 0.4.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via arena_embed_amp Shortcode

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-12 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• arenaim Arena.IM – Live Blogging for real-time events: through 0.3.0

References

• https://plugins.trac.wordpress.org/browser/arena-liveblog-and-chat-tool/trunk/albfre.php#L216
• https://plugins.trac.wordpress.org/browser/arena-liveblog-and-chat-tool/trunk/albfre.php#L257
• https://www.wordfence.com/threat-intel/vulnerabilities/id/729492e8-5625-444f-84ed-36b72cebc722?source=cve

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