Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/pluginsGLPI/tag
- https://github.com/pluginsGLPI/tag/commit/49e6b6eb5f83bcd84139a5e5ec54c0ddd14acc
- https://github.com/pluginsGLPI/tag/releases/tag/2.14.4
- https://github.com/pluginsGLPI/tag/security/advisories/GHSA-6rpj-89c7-x2mh
- https://www.vulncheck.com/advisories/glpi-tag-plugin-stored-cross-site-scripting
FAQ
What is CVE-2026-53987?
CVE-2026-53987 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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, resulti...
How severe is CVE-2026-53987?
CVE-2026-53987 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53987?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.