CVE-2023-23921

2023-02-1720:15:11

CWE-79

[email protected]

web.nvd.nist.gov

moodle

vulnerability

returnurl

parameter

remote

xss

attacks

nvd

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

5.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

46.0%

JSON

The vulnerability was found Moodle which exists due to insufficient sanitization of user-supplied data in some returnurl parameters. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user’s browser in context of vulnerable website. This flaw allows a remote attacker to perform cross-site scripting (XSS) attacks.

Affected configurations

NVD

Node

moodlemoodleRange3.9.0–3.9.19

moodlemoodleRange3.11.0–3.11.12

moodlemoodleRange4.0.0–4.0.6

moodlemoodleMatch4.1.0-

CPENameOperatorVersion
moodle:moodlemoodlelt3.9.19
moodle:moodlemoodlelt3.11.12
moodle:moodlemoodlelt4.0.6
moodle:moodlemoodleeq4.1.0

CPE	Name	Operator	Version
moodle:moodle	moodle	lt	3.9.19
moodle:moodle	moodle	lt	3.11.12
moodle:moodle	moodle	lt	4.0.6
moodle:moodle	moodle	eq	4.1.0

CNA Affected

[
  {
    "versions": [
      {
        "status": "affected",
        "version": "4.1.0",
        "lessThan": "4.1.1",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.0.0",
        "lessThan": "4.0.6",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.11.0",
        "lessThan": "3.11.12",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "0",
        "lessThan": "3.9.19",
        "versionType": "semver"
      }
    ],
    "packageName": "moodle",
    "collectionURL": "https://git.moodle.org",
    "defaultStatus": "unaffected"
  }
]