Vulnerability Name:

CCN-198850

Published:2021-03-26
Updated:2021-03-26
Summary:Moodle is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the view.php script. A remote authenticated attacker could exploit this vulnerability using the Description parameter to inject malicious script into a Web page which would be executed in a victim's Web browser once the page is viewed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.
CVSS v3 Severity:5.4 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)
5.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:H/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Consequences:Cross-Site Scripting
References:Source: XF
Type: UNKNOWN
moodle-attoeditor-xss(198850)

Source: CCN
Type: Moodle Web site
Moodle

Source: CCN
Type: Packet Storm Security [03-26-2021]
Moodle Atto Editor Cross Site Scripting

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:moodle:moodle:3.10.1:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.10.3:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.10.2:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.10:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    moodle moodle 3.10.1
    moodle moodle 3.10.3
    moodle moodle 3.10.2
    moodle moodle 3.10