CVE-2026-53987

Medium

Description

The Tag plugin for GLPI 11 before 2.14.4 stores the tag name without HTML sanitization and renders it into the Kanban badge markup via PluginTagTag::preKanbanContent() without output escaping, resulting in stored cross-site scripting. An authenticated user with TAG MANAGEMENT create or update rights can set a tag name containing HTML, which then executes in the browser of any user who opens the Kanban view of a ticket, problem, change, or project the tag is attached to.

SeverityMedium

CVSS6.4

Exploit probability—

ProductPluginsglpi Tag

PublishedJul 9, 2026

First seenJul 9, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

pluginsGLPI tag2.14.4 or later

Patches

Vendor advisories

github.com/pluginsGLPI/tag/security/advisories/GHSA-6rpj-89c7-x2mh

Affected products

Product	Affected versions	Fixed in
pluginsGLPI tag	2.6.0 ≤ v < 2.14.4	2.14.4

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