CVE-2022-21720Network attack vector

Entity-administrator data disclosure via unescaped custom CSS

Published Jan 28, 2022 · Updated May 5, 2025

SQL injection in GLPI before 9.5.7 allows remote authenticated users with entity-administrator rights to read inaccessible data. The custom CSS branch in front/entity.form.php copied custom_css_code from the unsanitized request into POST without database escaping. Entity-administrator access and the Entities update right are required; exposure is limited to reading GLPI, system, and MySQL data.

CVSS severity4.9
Medium
EPSS probability1.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in GLPI before 9.5.7 allows remote authenticated users with entity-administrator rights to read inaccessible data. The custom CSS branch in front/entity.form.php copied custom_css_code from the unsanitized request into POST without database escaping. Entity-administrator access and the Entities update right are required; exposure is limited to reading GLPI, system, and MySQL data.

The record

CVE
CVE-2022-21720
Published
Jan 28, 2022
Updated
May 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1213
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 28, 2022CVE publishedPublication date reported by the CVE source.
  2. May 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
4.9GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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