What’s Vulnerable › Vulnerabilities

CVE-2026-6246: Simple Random Posts Shortcode <= 0.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'container_right_width' Shortcode Attribute

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-22 · updated 2026-06-17
• Weakness: CWE-79

Description

The Simple Random Posts Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'container_right_width' attribute of the 'simple_random_posts' shortcode in all versions up to, and including, 0.3 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

• mkerstner Simple Random Posts Shortcode: through 0.3

References

• https://plugins.trac.wordpress.org/browser/simple-random-posts-shortcode/tags/0.3/simple-random-posts-shortcode.php#L54
• https://plugins.trac.wordpress.org/browser/simple-random-posts-shortcode/trunk/simple-random-posts-shortcode.php#L54
• https://www.wordfence.com/threat-intel/vulnerabilities/id/7d61e6ea-4975-452a-8f9c-1c6d428372ac?source=cve

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