GLPI has an Unauthenticated Stored XSS via inventory

published 2026-04-06 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-19247

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits: 0; none known

GLPI is a free asset and IT management software package. From 11.0.0 to before 11.0.6, an unauthenticated user can store an XSS payload through the inventory endpoint. This vulnerability is fixed in 11.0.6.

Patch / fix

fixed in 2

glpi-project glpi 11.0.6
teclib-edition glpi 11.0.6

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 7 mo ago (2026-04-06)

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

glpi-project glpi

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-116 Improper Encoding or Escaping of Output
CWE-306 Missing Authentication for Critical Functionality

References

github.com /glpi-project/glpi/security/advisories/GHSA-chch-wcm9-f9cp
vendor-advisory

Sources

CVE List CVE-2026-26027
NVD CVE-2026-26027

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary