// For flags

CVE-2023-6165

Restrict Usernames Emails Characters Plugin < 3.1.4 - Admin+ Stored XSS

Severity Score

4.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The Restrict Usernames Emails Characters WordPress plugin before 3.1.4 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed

El complemento de WordPress Restrict Usernames Emails Characters anterior a 3.1.4 no sanitiza ni escapa a algunas de sus configuraciones, lo que podría permitir a usuarios con altos privilegios, como el administrador, realizar ataques de cross site scripting incluso cuando unfiltered_html no está permitido.

The Restrict Usernames Emails Characters plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to and including 3.1.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

*Credits: Yuhang Liu, WPScan
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-11-15 CVE Reserved
  • 2024-01-29 CVE Published
  • 2024-02-03 EPSS Updated
  • 2024-08-02 CVE Updated
  • 2024-08-02 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Benaceur-php
Search vendor "Benaceur-php"
 Restrict Usernames Emails Characters
Search vendor "Benaceur-php" for product "Restrict Usernames Emails Characters"
 < 3.1.4
Search vendor "Benaceur-php" for product "Restrict Usernames Emails Characters" and version " < 3.1.4"
wordpress
Affected