Is Instantio safe to use?

Laskyr does not give safety verdicts. No known unpatched vulnerabilities in the latest version (3.3.37). As of 2026-11-04. 3 issues are on record for older versions; version 3.3.31 or newer fixes all of them that state a fix. Keep Instantio on the latest version (3.3.37) and remove it if you do not use it.

Which versions of Instantio are vulnerable?

Known issues on record (newest first): Information disclosure (3.3.30 and older, fixed in 3.3.31); Arbitrary file upload (3.3.16 and older, fixed in 3.3.17); Missing authorization check (3.3.7 and older, fixed in 3.3.8). The full list with sources is on this page.

What is the latest version of Instantio?

3.3.37, according to wordpress.org (last updated 2026-10-19). It has 700+ active installs.

What should I do if my Instantio is out of date?

Take a backup, then update it from Dashboard > Updates (or run wp plugin update instantio). If you cannot update right away, deactivate it until you can. If you think the site was already attacked, run a free scan at https://laskyr.com/scan.

Plugins · instantio · data as of 2026-11-04

Is Instantio safe? Known vulnerabilities and latest version

Latest version: 3.3.37
Last updated: 2026-10-19
Active installs: 700+
Known issues on record: 3
Unpatched in latest: 0
Tested up to WP: 7.1.4 · PHP 7.4+

Add a side cart, popup cart, floating cart button, and one-page checkout layouts to WooCommerce. — by Themefic

What to do

Update to the latest version (3.3.37). Anything older than 3.3.31 has at least one known issue listed below. Dashboard → Updates, or Plugins → “update now”.
If you cannot update right away, deactivate it until you can.
Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan.

With WP-CLI: wp plugin get instantio --field=version shows what you run; wp plugin update instantio updates it.

Check your version

Known vulnerabilities

3 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version.

medium 5.3 CVE-2026-39571 · published 2026-04-08

Information disclosure in Instantio (3.3.30 and older)

Affected: 3.3.30 and older
Fixed in: 3.3.31
Access needed (per CVSS): No login needed
Range from: CVE record (the advisory publisher) · score by Patchstack

Details from the advisory

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Themefic Instantio instantio allows Retrieve Embedded Sensitive Data.This issue affects Instantio: from n/a through <= 3.3.30.

NVD CVE-2026-39571 Patchstack advisory

high 7.2 CVE-2025-47550 · published 2025-05-07

Arbitrary file upload in Instantio (3.3.16 and older)

Affected: 3.3.16 and older
Fixed in: 3.3.17
Access needed (per CVSS): Needs an admin-level account
Range from: CVE record (the advisory publisher) · score by NVD

Details from the advisory

Unrestricted Upload of File with Dangerous Type vulnerability in Themefic Instantio instantio allows Upload a Web Shell to a Web Server.This issue affects Instantio: from n/a through <= 3.3.16.

NVD CVE-2025-47550 Patchstack advisory

medium 6.5 CVE-2025-24581 · published 2025-04-17

Missing authorization check in Instantio (3.3.7 and older)

Affected: 3.3.7 and older
Fixed in: 3.3.8
Access needed (per CVSS): No login needed
Range from: CVE record (the advisory publisher) · score by Patchstack

Details from the advisory

Missing Authorization vulnerability in Themefic Instantio instantio allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Instantio: from n/a through <= 3.3.7.

NVD CVE-2025-24581 Patchstack advisory

Recent activity

2026-10-19 — latest release on wordpress.org (3.3.37).
2026-04-08 — Information disclosure disclosed (CVE-2026-39571), fixed in 3.3.31.
2025-05-07 — Arbitrary file upload disclosed (CVE-2025-47550), fixed in 3.3.17.
2025-04-17 — Missing authorization check disclosed (CVE-2025-24581), fixed in 3.3.8.

Free. We check the CVE feeds every day and email you only when a new issue for Instantio (instantio) is published or a fix ships. Unsubscribe in one click.

Browse vulnerabilities

Types found in this plugin: Sensitive data exposure (1) · Arbitrary file upload (1) · Missing authorization (1)

Where this data comes from

Version, last update, installs: wordpress.org/plugins/instantio (Plugins API), fetched 2026-11-04.
Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.

Badge for your site or docs (states facts with a date, not a verdict):

<a href="https://laskyr.com/plugins/instantio"><img src="https://laskyr.com/plugins/instantio/badge.svg" alt="Instantio vulnerability status"></a>

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Is Instantio safe? Known vulnerabilities and latest version

No known unpatched vulnerabilities in the latest version (3.3.37)

What to do

Check your version

Known vulnerabilities

Information disclosure in Instantio (3.3.30 and older)

Arbitrary file upload in Instantio (3.3.16 and older)

Missing authorization check in Instantio (3.3.7 and older)

Recent activity

Get an email when Instantio has a new vulnerability

Browse vulnerabilities

Where this data comes from