CVE-2026-116858

WordPress Forminator plugin <= 1.58.3 - Content Injection vulnerability

4.3 Medium

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in WPMU DEV Forminator forminator allows Code Injection.This issue affects Forminator: from n/a through 1.58.3.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.17%Unchanged since Nov 4, 2026

What each source reports

CVE List Score used 4.3

WordPress Forminator plugin <= 1.58.3 - Content Injection vulnerability

Record: CVE-2026-116858
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-80
Updated: 2026-11-04

EUVDEUVD-2026-116085 4.3

Record: EUVD-2026-116085
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-04

GitHub AdvisoriesGHSA-gcch-59vx-gx8q 4.3

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in...

Record: GHSA-gcch-59vx-gx8q
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-80
Updated: 2026-11-03

NVD 4.3

Record: CVE-2026-116858
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-80
Updated: 2026-11-04

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, references	GitHub Advisories
Nov 3, 2026	aliases, products	EUVD
Nov 3, 2026	first indexed	CVE List

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

In short

CVE-2026-116858 is a medium vulnerability (CVSS 4.3) in Wpmu Dev Forminator, published November 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. No source names a fixed version.