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CVE-2026-3554

MEDIUM

6.4

Description

The Sherk Custom Post Type Displays plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title' shortcode attribute in all versions up to, and including, 1.2.1. This is due to insufficient input sanitization and output escaping on the 'title' attribute of the 'sherkcptdisplays' shortcode. Specifically, in the sherkcptdisplays_func() function in includes/SherkCPTDisplaysShortcode.php, the 'title' attribute value is extracted from shortcode_atts() on line 19 and directly concatenated into an HTML <h2> tag on line 31 without any escaping. 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.

Details CVE

Score CVSS v3.16.4

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie3/21/2026

Derniere modification3/23/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-79

References

https://plugins.trac.wordpress.org/browser/sherk-custom-post-type-displays/tags/1.2.1/includes/SherkCPTDisplaysShortcode.php#L19(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/sherk-custom-post-type-displays/tags/1.2.1/includes/SherkCPTDisplaysShortcode.php#L31(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/sherk-custom-post-type-displays/trunk/includes/SherkCPTDisplaysShortcode.php#L19(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/sherk-custom-post-type-displays/trunk/includes/SherkCPTDisplaysShortcode.php#L31(security@wordfence.com)

https://www.wordfence.com/threat-intel/vulnerabilities/id/d227d4e4-2899-434c-8b93-8d93a89b1b1b?source=cve(security@wordfence.com)

Correlations IOC

Aucune correlation enregistree

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