What’s Vulnerable › Vulnerabilities

CVE-2023-2436: Blog-in-Blog <= 2.0.0 - Authenticated (Editor+) Stored Cross-Site Scripting via Shortcode

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-31 · updated 2026-06-17
• Weakness: CWE-79

Description

The Blog-in-Blog plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'blog_in_blog' shortcode in versions up to, and including, 2.0.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with editor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• timhodson Blog-in-Blog: through 1.1.1

References

• https://plugins.trac.wordpress.org/browser/blog-in-blog/tags/1.1.1/blog-in-blog.php#L257
• https://plugins.trac.wordpress.org/changeset/3446931/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/5c6a88c3-18b7-470f-8014-373ead66dcfa?source=cve
• https://plugins.trac.wordpress.org/browser/blog-in-blog/tags/1.1.1/blog-in-blog.php#L257
• https://www.wordfence.com/threat-intel/vulnerabilities/id/5c6a88c3-18b7-470f-8014-373ead66dcfa?source=cve

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