PT-2026-4596 · WordPress · Cm Css Columns

Youcef Hamdani · Published 2026-01-24 · Updated 2026-01-24 · CVE-2026-1098

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions CM CSS Columns plugin for WordPress versions prior to 1.2.2

Description The CM CSS Columns plugin for WordPress is susceptible to Stored Cross-Site Scripting through the tag shortcode attribute. Insufficient input sanitization and output escaping on user-supplied attributes allows authenticated attackers with Contributor-level access or higher to inject arbitrary web scripts into pages. These scripts will execute when a user accesses the injected page.

Recommendations Update the CM CSS Columns plugin to version 1.2.2 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-1098

Affected Products

Cm Css Columns

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-1098 · Security Note
• https://twitter.com/VulmonFeeds/status/2015065344482615343 · Twitter Post
• https://t.me/CVEtracker/42938 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/dabcc606-04ab-4fb0-bf3c-d3ad915b8904?source=cve · Note
• https://twitter.com/CVEnew/status/2014995760920834402 · Twitter Post
• https://plugins.trac.wordpress.org/browser/cm-css-columns/tags/1.2.1/includes/Shortcoder.php#L109 · Note
• https://plugins.trac.wordpress.org/browser/cm-css-columns/trunk/includes/Shortcoder.php#L109 · Note