CVE-2024-5441 Modern Events Calendar <= 7.11.0 - Authenticated (Subscriber+) Arbitrary File Upload

2024-07-0905:34:17

Wordfence

www.cve.org

wordpress

arbitrary file upload

remote code execution

subscriber access

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

19.5%

JSON

The Modern Events Calendar plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the set_featured_image function in all versions up to, and including, 7.11.0. This makes it possible for authenticated attackers, with subscriber access and above, to upload arbitrary files on the affected site’s server which may make remote code execution possible. The plugin allows administrators (via its settings) to extend the ability to submit events to unauthenticated users, which would allow unauthenticated attackers to exploit this vulnerability.

CNA Affected

[
  {
    "vendor": "Webnus",
    "product": "Modern Events Calendar",
    "versions": [
      {
        "version": "*",
        "status": "affected",
        "lessThanOrEqual": "7.11.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "webnus/",
    "product": "Modern Events Calendar Lite",
    "versions": [
      {
        "version": "*",
        "status": "affected",
        "lessThanOrEqual": "7.11.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]