Vulnerability Report

CVE-2020-5248

Title: GLPI Default Encryption Key Vulnerability

XSS

Proof Of Concept

PoC Available for CVE-2020-5248

CWE Category CWE-798
Published Date May 12, 2020
Modified Date Jun 17, 2026
Exploit Status Available
Score 7.2 CVSS v3.1
Exploit Probability (EPSS)
1.43%

Vulnerability Summary

CVE-2020-5248: GLPI before before version 9.4.6 has a vulnerability involving a default encryption key. GLPIKEY is public and is used on every instance. This means anyone can decrypt sensitive data stored using this key. It is possible to change the key before installing GLPI. But on existing instances, data must be reencrypted with the new key. Problem is we can not know which columns or rows in the database are using that; espcially from plugins. Changing the key without updating data would lend in bad password sent from glpi; but storing them again from the UI will work.

Impacted Vendors

G
glpi-project 1
T
teclib-edition 1

Reference Links

https://github.com/glpi-project/glpi/commit/efd14468c92c4da43333aa9735e65fd20cbc7c6c https://github.com/glpi-project/glpi/security/advisories/GHSA-j222-j9mf-h6j9 https://github.com/glpi-project/glpi/commit/efd14468c92c4da43333aa9735e65fd20cbc7c6c https://github.com/glpi-project/glpi/security/advisories/GHSA-j222-j9mf-h6j9
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.2
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-5248 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/venomnis/CVE-2020-5248
View Code
GitHub https://github.com/Mkway/CVE-2020-5248
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

Affected Stack

No specific products linked.