CVE-2026-53987
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 4.0
- 7.3 HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.50% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- disclosure@vulncheck.com
References
- https://github.com/pluginsGLPI/tag
- https://github.com/pluginsGLPI/tag/commit/49e6b6eb5f83bcd84139a5e5ec54c0ddd14acc90
- 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-in-kanban-badge-rendering
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.