SB2021091712 - Multiple vulnerabilities in GLPI

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2021091712

SB2021091712 - Multiple vulnerabilities in GLPI

Published: September 17, 2021 Updated: May 4, 2026

Security Bulletin ID SB2021091712
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 75% Low 25%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Information disclosure (CVE-ID: CVE-2021-39211)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in telemetry endpoint. A remote attacker can gain unauthorized access to sensitive information on the system.


2) Sensitive Cookie Without 'HttpOnly' Flag (CVE-ID: CVE-2021-39210)

CWE-ID: CWE-1004 - Sensitive Cookie Without 'HttpOnly' Flag

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the cookie used to store the autologin cookie (when a user uses the "remember me" feature) is accessible by scripts. A remote authenticated attacker can gain unauthorized access to sensitive information on the system.


3) Cross-site request forgery (CVE-ID: CVE-2021-39209)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.


4) Improper Neutralization of Special Elements in Output Used by a Downstream Component (CVE-ID: CVE-2021-39213)

CWE-ID: CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper inout validation. A remote authenticated attacker can bypass API with custom header injection.


Remediation

Install update from vendor's website.

References