CVE-2026-53987: GLPI 11 2.6.0 to before 2.14.4

CVE-2026-53987. CVSS 3.1 base score 6.4 (MEDIUM, Vendor/CNA). EPSS 0.00503 (percentile 0.42173), scored 24-Oct-2026.

Affected technology

GLPI 11 · 2.6.0 to before 2.14.4
Tag plugin

Description’s affected range: 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

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · High privileges required · Passive user interaction

What an attacker can do

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. Vendor/CNA’s CVSS 4.0 assessment (base score 7.3/10) rates confidentiality, integrity and availability impact as high.

Published 25-Oct-2026 19:52 UTC

CWE: CWE-79
CCR priority: 25.7 /100 (P4)
CVSS 3.1: 6.4 /10 · CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H · Vendor/CNA
EPSS: 0.00503 · percentile 0.4273 · 2026-10-25
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-53987.html