CVE-2025-23439

WordPress TinyMCE Extended Config plugin <= 0.1.0 - Reflected Cross Site Scripting (XSS) vulnerability

7.1 High

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in willshouse TinyMCE Extended Config tinymce-extended-config allows Reflected XSS.This issue affects TinyMCE Extended Config: from n/a through <= 0.1.0.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: Low

Exploit likelihood

0.30%Up 0.3 points since Mar 4, 2025

What each source reports

CVE List Score used 7.1

WordPress TinyMCE Extended Config plugin <= 0.1.0 - Reflected Cross Site Scripting (XSS) vulnerability

Record: CVE-2025-23439
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2025-5767 7.1

Record: EUVD-2025-5767
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-2739-vvgg-6rwf 7.1

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')...

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in willshouse TinyMCE Extended Config allows Reflected XSS. This issue affects TinyMCE Extended Config: from n/a through 0.1.0.

Record: GHSA-2739-vvgg-6rwf
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

NVD 7.1

Record: CVE-2025-23439
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

Affected products

willshouse tinymce extended config

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-23439 is a high vulnerability (CVSS 7.1) in Willshouse Tinymce Extended Config, published March 3, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.