What’s Vulnerable › Vulnerabilities

CVE-2023-5745: Reusable Text Blocks <= 1.5.3 - Authenticated (Author+) Stored Cross-Site Scripting via Shortcode

• Severity: medium (CVSS 5.4 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: 2023-10-25 · updated 2026-06-17
• Weakness: CWE-79

Description

The Reusable Text Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'text-blocks' shortcode in versions up to, and including, 1.5.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with author-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• richardgabriel Reusable Text Blocks: through 1.5.3

References

• https://plugins.trac.wordpress.org/browser/reusable-text-blocks/tags/1.5.3/text-blocks.php#L319
• https://www.wordfence.com/threat-intel/vulnerabilities/id/0d627ee7-1175-4621-a477-1e9ec2d05eee?source=cve
• https://plugins.trac.wordpress.org/browser/reusable-text-blocks/tags/1.5.3/text-blocks.php#L319
• https://www.wordfence.com/threat-intel/vulnerabilities/id/0d627ee7-1175-4621-a477-1e9ec2d05eee?source=cve

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