Is Stackable safe to use?

Laskyr does not give safety verdicts. No known unpatched vulnerabilities in the latest version (3.20.3). As of 2026-11-04. 7 issues are on record for older versions; version 3.19.6 or newer fixes all of them that state a fix. Keep Stackable on the latest version (3.20.3) and remove it if you do not use it.

Which versions of Stackable are vulnerable?

Known issues on record (newest first): Stored cross-site scripting (XSS) (3.19.5 and older, fixed in 3.19.6); Missing authorization check (3.18.1 and older, fixed in 3.19.0); Information disclosure (3.18.1 and older, fixed in 3.19.0); Stored cross-site scripting (XSS) (3.13.11 and older, fixed in 3.13.12); Cross-site request forgery (CSRF) (3.13.6 and older, fixed in 3.13.7); Stored cross-site scripting (XSS) (3.13.1 and older, fixed in 3.13.2). The full list with sources is on this page.

What is the latest version of Stackable?

3.20.3, according to wordpress.org (last updated 2026-10-13). It has 100,000+ active installs.

What should I do if my Stackable is out of date?

Take a backup, then update it from Dashboard > Updates (or run wp plugin update stackable-ultimate-gutenberg-blocks). 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 · stackable-ultimate-gutenberg-blocks · data as of 2026-11-04

Is Stackable safe? Known vulnerabilities and latest version

Latest version: 3.20.3
Last updated: 2026-10-13
Active installs: 100,000+
Known issues on record: 7
Unpatched in latest: 0
Tested up to WP: 7.1.4 · PHP 7.4+

The complete website builder for the WordPress block editor. Build professional sites faster with powerful blocks, block styles, and a global design s … — by Benjamin Intal

What to do

Update to the latest version (3.20.3). Anything older than 3.19.6 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 stackable-ultimate-gutenberg-blocks --field=version shows what you run; wp plugin update stackable-ultimate-gutenberg-blocks updates it.

Check your version

Known vulnerabilities

7 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 5.9 CVE-2025-47500 · published 2026-01-22

Stored cross-site scripting (XSS) in Stackable (3.19.5 and older)

Affected: 3.19.5 and older
Fixed in: 3.19.6
Access needed (per CVSS): Needs an admin-level account; someone on the site has to click a link or open a page
Range from: CVE record (the advisory publisher) · score by Patchstack

Details from the advisory

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Benjamin Intal Stackable stackable-ultimate-gutenberg-blocks allows Stored XSS.This issue affects Stackable: from n/a through <= 3.19.5.

NVD CVE-2025-47500 Patchstack advisory

medium 4.3 CVE-2025-60094 · published 2025-09-26

Missing authorization check in Stackable (3.18.1 and older)

Affected: 3.18.1 and older
Fixed in: 3.19.0
Access needed (per CVSS): Needs a low-level account (e.g. subscriber)
Range from: CVE record (the advisory publisher) · score by Patchstack

Details from the advisory

Missing Authorization vulnerability in Benjamin Intal Stackable stackable-ultimate-gutenberg-blocks allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Stackable: from n/a through <= 3.18.1.

NVD CVE-2025-60094 Patchstack advisory

medium 4.3 CVE-2025-60095 · published 2025-09-26

Information disclosure in Stackable (3.18.1 and older)

Affected: 3.18.1 and older
Fixed in: 3.19.0
Access needed (per CVSS): Needs a low-level account (e.g. subscriber)
Range from: CVE record (the advisory publisher) · score by Patchstack

Details from the advisory

Insertion of Sensitive Information Into Sent Data vulnerability in Benjamin Intal Stackable stackable-ultimate-gutenberg-blocks allows Retrieve Embedded Sensitive Data.This issue affects Stackable: from n/a through <= 3.18.1.

NVD CVE-2025-60095 Patchstack advisory

medium 5.4 CVE-2024-12117 · published 2025-01-22

Stored cross-site scripting (XSS) in Stackable (3.13.11 and older)

Affected: 3.13.11 and older
Fixed in: 3.13.12 *
Access needed (per CVSS): Needs a low-level account (e.g. subscriber); someone on the site has to click a link or open a page
Range from: CVE record (the advisory publisher) · score by NVD

Details from the advisory

The Stackable – Page Builder Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title' parameter of the Button block in all versions up to, and including, 3.13.11 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

NVD CVE-2024-12117 Wordfence advisory Code change (fix)

medium 5.3 CVE-2024-8760 · published 2024-10-12

Cross-site request forgery (CSRF) in Stackable (3.13.6 and older)

Affected: 3.13.6 and older
Fixed in: 3.13.7 *
Access needed (per CVSS): No login needed
Range from: CVE record (the advisory publisher) · score by Wordfence

Details from the advisory

The Stackable – Page Builder Gutenberg Blocks plugin for WordPress is vulnerable to CSS Injection in all versions up to, and including, 3.13.6. This makes it possible for unauthenticated attackers to embed untrusted style information into comments resulting in a possibility of data exfiltration such as admin nonces with limited impact. These nonces could be used to perform CSRF attacks within a limited time window. The presence of other plugins may make additional nonces available, which may pose a risk in plugins that don't perform capability checks to protect AJAX actions or other actions reachable by lower-privileged users.

NVD CVE-2024-8760 Wordfence advisory Code change (fix)

medium 6.4 CVE-2024-6296 · published 2024-06-28

Stored cross-site scripting (XSS) in Stackable (3.13.1 and older)

Affected: 3.13.1 and older
Fixed in: 3.13.2 *
Access needed (per CVSS): Needs a low-level account (e.g. subscriber)
Range from: CVE record (the advisory publisher) · score by Wordfence

Details from the advisory

The Stackable – Page Builder Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-caption’ parameter in all versions up to, and including, 3.13.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

NVD CVE-2024-6296 Wordfence advisory Code change (fix)Plugin source

medium 6.4 CVE-2024-2039 · published 2024-04-09

Stored cross-site scripting (XSS) in Stackable (3.12.11 and older)

Affected: 3.12.11 and older
Fixed in: 3.12.12 *
Access needed (per CVSS): Needs a low-level account (e.g. subscriber)
Range from: CVE record (the advisory publisher) · score by Wordfence

Details from the advisory

The Stackable – Page Builder Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Post(v2) block title tag in all versions up to, and including, 3.12.11 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

NVD CVE-2024-2039 Wordfence advisory Code change (fix)

Recent activity

2026-10-13 — latest release on wordpress.org (3.20.3).
2026-01-22 — Stored cross-site scripting (XSS) disclosed (CVE-2025-47500), fixed in 3.19.6.
2025-09-26 — Missing authorization check disclosed (CVE-2025-60094), fixed in 3.19.0.
2025-09-26 — Information disclosure disclosed (CVE-2025-60095), fixed in 3.19.0.

Free. We check the CVE feeds every day and email you only when a new issue for Stackable (stackable-ultimate-gutenberg-blocks) is published or a fix ships. Unsubscribe in one click.

Browse vulnerabilities

Types found in this plugin: Cross-site scripting (XSS) (4) · Missing authorization (1) · Sensitive data exposure (1) · Cross-site request forgery (CSRF) (1)

Where this data comes from

Version, last update, installs: wordpress.org/plugins/stackable-ultimate-gutenberg-blocks (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/stackable-ultimate-gutenberg-blocks"><img src="https://laskyr.com/plugins/stackable-ultimate-gutenberg-blocks/badge.svg" alt="Stackable vulnerability status"></a>

← Check another plugin · Free hacked-site scan

Is Stackable safe? Known vulnerabilities and latest version

No known unpatched vulnerabilities in the latest version (3.20.3)

What to do

Check your version

Known vulnerabilities

Stored cross-site scripting (XSS) in Stackable (3.19.5 and older)

Missing authorization check in Stackable (3.18.1 and older)

Information disclosure in Stackable (3.18.1 and older)

Stored cross-site scripting (XSS) in Stackable (3.13.11 and older)

Cross-site request forgery (CSRF) in Stackable (3.13.6 and older)

Stored cross-site scripting (XSS) in Stackable (3.13.1 and older)

Stored cross-site scripting (XSS) in Stackable (3.12.11 and older)

Recent activity

Get an email when Stackable has a new vulnerability

Browse vulnerabilities

Where this data comes from