Vulnerability · Published Jul 9, 2026 · Assigned by VulnCheck

CVE-2026-53987Tag Plugin for GLPI 11 before 2.14.4 Stored Cross-Site Scripting in Kanban Badge Rendering

Medium 6.4

In plain English

A medium-severity cross-site scripting in tag from pluginsGLPI. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 3.1)6.4Medium

Exploit odds (30 days)0.5%top 56.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
pluginsGLPI	tag	2.6.0 – before 2.14.4

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-6rpj-89c7-x2mh) vendor-advisory
Tag Plugin 2.14.4 Release patch
Product product
Patch Commit patch
https://www.vulncheck.com/advisories/glpi-tag-plugin-stored-cross-site-scripting-in-kanban-badge-rendering third-party-advisory