What’s Vulnerable › Vulnerabilities

CVE-2023-0542: Custom Post Type List Shortcode <= 1.4.4 - Contributor+ Stored XSS

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-05-08 · updated 2026-06-17
• Weakness: CWE-79

Description

The Custom Post Type List Shortcode WordPress plugin through 1.4.4 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Affected products

• Custom Post Type List Shortcode: through 1.4.4

References

• https://wpscan.com/vulnerability/17de2f77-3e6c-4c22-9196-6e5577ee7fcf
• https://wpscan.com/vulnerability/17de2f77-3e6c-4c22-9196-6e5577ee7fcf

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