CVE-2023-5311 HIGH

CVE-2023-5311: WP EXtra <= 6.2 - Missing Authorization to .htaccess File Modification

Vendor Wpvncom
Product WP EXtra – One Click Optimize
Weakness CWE-862 · Missing authorization
Published October 25, 2023
Last update April 8, 2026

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

The WP EXtra plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the register() function in versions up to, and including, 6.2. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the contents of the .htaccess files located in a site's root directory or /wp-content and /wp-includes folders and achieve remote code execution. CVE-2023-46623 appears to be a duplicate of this issue.

Key dates

02Disclosure timeline

October 25, 2023 CVE published
April 8, 2026 Record updated