CVE-2021-24857 Information

Description

The ToTop Link WordPress plugin through 1.7.1 passes base64 encoded user input to the unserialize() PHP function which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain.

CVSS Vector

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

Reference

https://wpscan.com/vulnerability/518204d8-fbf5-4bfa-9db5-835f908f8d8e

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8