CVE-2021-27131

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-27131
** DISPUTED ** Moodle 3.10.1 is vulnerable to persistent/stored cross-site scripting (XSS) due to the improper input sanitization on the "Additional HTML Section" via "Header and Footer" parameter in /admin/settings.php. This vulnerability is leading an attacker to steal admin and all user account cookies by storing the malicious XSS payload in Header and Footer. NOTE: this is disputed by the vendor because the "Additional HTML Section" for "Header and Footer" can only be supplied by an administrator, who is intentionally allowed to enter unsanitized input (e.g., site-specific JavaScript).

5.4 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://docs.moodle.org/402/en/Risks
https://github.com/moodle/moodle Product
https://github.com/p4nk4jv/CVEs-Assigned/blob/master/Moodle-3.10.1-CVE-2021-27131.md Exploit
Configurations

Configuration 1 (hide)

cpe:2.3:a:moodle:moodle:3.10.1:*:*:*:*:*:*:*
History

14 Jun 2023, 12:15

Type Values Removed Values Added
Summary Moodle 3.10.1 is vulnerable to persistent/stored cross-site scripting (XSS) due to the improper input sanitization on the "Additional HTML Section" via "Header and Footer" parameter in /admin/settings.php. This vulnerability is leading an attacker to steal admin and all user account cookies by storing the malicious XSS payload in Header and Footer. ** DISPUTED ** Moodle 3.10.1 is vulnerable to persistent/stored cross-site scripting (XSS) due to the improper input sanitization on the "Additional HTML Section" via "Header and Footer" parameter in /admin/settings.php. This vulnerability is leading an attacker to steal admin and all user account cookies by storing the malicious XSS payload in Header and Footer. NOTE: this is disputed by the vendor because the "Additional HTML Section" for "Header and Footer" can only be supplied by an administrator, who is intentionally allowed to enter unsanitized input (e.g., site-specific JavaScript).
References
  • (MISC) https://docs.moodle.org/402/en/Risks -

25 May 2023, 15:56

Type Values Removed Values Added
References (MISC) https://github.com/moodle/moodle - (MISC) https://github.com/moodle/moodle - Product
References (MISC) https://github.com/p4nk4jv/CVEs-Assigned/blob/master/Moodle-3.10.1-CVE-2021-27131.md - (MISC) https://github.com/p4nk4jv/CVEs-Assigned/blob/master/Moodle-3.10.1-CVE-2021-27131.md - Exploit
CWE CWE-79
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.4
CPE cpe:2.3:a:moodle:moodle:3.10.1:*:*:*:*:*:*:*

16 May 2023, 20:15

Type Values Removed Values Added
New CVE
Information

Published : 2023-05-16 20:15

Updated : 2024-08-03 21:15

NVD link : CVE-2021-27131

Mitre link : CVE-2021-27131

CVE.ORG link : CVE-2021-27131

JSON object : View

Products Affected

moodle

  • moodle
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')