CVE-2026-1039116.5MediumCWE-94

CVE-2026-103911: Forminator Forms <= 1.58.1 - Unauthenticated Arbitrary Shortcode Execution via 's' Search Parameter and Anonymous Comment via render_block

wpmudev · Forminator Forms – Contact Form, Payment Form & Custom Form Builder

Affected: wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.3%probability of exploitation in the next 30 days

20th percentile

050100

Higher than 20% of scored CVEs

6.5MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

The The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 1.58.1. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. This is exploitable on any block-theme install via a single unauthenticated GET request to the search results page, or by submitting an anonymous comment on any post with comments enabled; no Forminator-specific content or configuration is required to trigger execution.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

wpmudev · Forminator Forms – Contact Form, Payment Form & Custom Form Builderup to and including 1.58.1

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Code Injection · Command and Code Injection
Vendor: wpmudev
Published: October 2026
Band: Unlikely (under 1%), October 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-103911 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.