// For flags

CVE-2023-23995

WordPress TinyMCE Custom Styles Plugin <= 1.1.2 is vulnerable to Cross Site Scripting (XSS)

Severity Score

4.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Tim Reeves & David Stöckl TinyMCE Custom Styles plugin <= 1.1.2 versions.

The TinyMCE Custom Styles plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 1.1.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrative-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.

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Tim Reeves & David Stöckl TinyMCE Custom Styles plugin <= 1.1.2 versions.

*Credits: Rio Darmawan (Patchstack Alliance)
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
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
Multiple
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-01-20 CVE Reserved
  • 2023-01-27 CVE Published
  • 2025-01-09 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
  • CAPEC-592: Stored XSS
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Tinymce Custom Styles Project
Search vendor "Tinymce Custom Styles Project"
 Tinymce Custom Styles
Search vendor "Tinymce Custom Styles Project" for product "Tinymce Custom Styles"
 < 1.1.3
Search vendor "Tinymce Custom Styles Project" for product "Tinymce Custom Styles" and version " < 1.1.3"
wordpress
Affected