CVE-2026-1098

The CM CSS Columns plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tag' shortcode attribute in all versions up to, and including, 1.2.1 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.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://plugins.trac.wordpress.org/browser/cm-css-columns/tags/1.2.1/includes/Shortcoder.php#L109
https://plugins.trac.wordpress.org/browser/cm-css-columns/trunk/includes/Shortcoder.php#L109
https://www.wordfence.com/threat-intel/vulnerabilities/id/dabcc606-04ab-4fb0-bf3c-d3ad915b8904?source=cve

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) El plugin CM CSS Columns para WordPress es vulnerable a cross-site scripting almacenado a través del atributo de shortcode 'tag' en todas las versiones hasta e incluyendo la 1.2.1 debido a una sanitización de entrada y un escape de salida insuficientes en los atributos proporcionados por el usuario. Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador y superior, inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada.

24 Jan 2026, 09:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-24 09:15

Updated : 2026-06-17 10:14

NVD link : CVE-2026-1098

Mitre link : CVE-2026-1098

CVE.ORG link : CVE-2026-1098

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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